chemistry
A solution which contains more of the solute than it can hold under ordinary conditions is a. supersaturated b. saturated c. dilute d. concentrated
...a
A charged group of atoms functioning as a single unit in a chemical reaction is a. a polyatomic ion b. an atom c. a symbol d. a molecule
a
Readings of 6.9 and below on the pH scale would indicate a. acids b. bases c. pure water d. salt
a
Which of the following would NOT be found in a pre-injection fluid? a. a high concentration of formaldehyde b. a low concentration of preservatives c. water conditioning agents d. anticoagulants
a
Which of the following would NOT normally be present in a cavity fluid? a. active dyes b. germicides c. preservatives d. coagulants
a
Which of these substances is NOT derived from the decomposition of proteins? a. carbon monoxide b. cadaverine c. putrescine d. ammonia
a
________ normal blood ________ acid ________ base ________ neutral ________ pH scale range a. 7.3 to 7.4 b. 1.3 to 6.1 c. 7.6 to 13.3 d. 7.0 e. 0 to 14
a b c d e
_________ vehicle _________ humectant _________ anticoagulant _________ preservative _________ buffer a. water b. sorbitol c. sodium citrate d. methanol e. sodium tetraborate
a b c d e
________ solubility ________ density ________ specific gravity ________ mass ________ matter a. the amount of substances that will dissolve in a specific solvent at a definite temperature b. mass per unit volume c. anything that has weight and occupies space d. measure of the quantity of material expressed in pounds or grams e. Weight of a definite volume of a substance divided by the weight of an equal volume of water
a b e d c
_________ amino acids _________ amphoteric _________ fatty acids _________ tristearin _________ carbon dioxide a. protein hydrolysis products b. hydrolysis products of fats c. a fat d. posses both weak base and weak acid properties e. a product produced by the process of decarboxylation
a d b c e
_________ putrescine _________ monosaccharides _________ amino acids _________ fatty acids & glycerol _________ glycine a. an anime produced in putrefaction b. final products of hydrolysis of fats c. final products of hydrolysis of proteins d. an amino acid e. final products of hydrolysis of polysaccharides
a e c b d
A group of atoms functioning as a single atom in a chemical reaction a. a radical b. a formula c. a symbol d. a molecule
a...
A protein compound that acts as a biological catalyst in chemical reactions is a. an enzyme b. an oil c. a steroid d. a hormone
a...
A salt serving as an electrolyte would release a. metallic ions and ions of non-metals or non-metallic radicals b. only sodium ions c. only chlorine atoms d. only sulfate ions
a...
A solution created with water as the solvent is said to be a. aqueous b. aromatic c. hydrate d. hydroxide
a...
A solution in which more solute can be dissolved at a given temperature is a. unsaturated b. supersaturated c. saturated d. concentrated
a...
A substance that is used as a buffer because it can act as either an acid or a base is considered to be a. amphoteric b. colloidal c. an emulsifier d. imbibitic
a...
Acidity or alkalinity is conveniently expressed by a scale of a. pH values b. acid reactance values c. % by weight Hydrogen or Hydroxide ions d. % by volume Hydrogen or Hydroxide ions
a...
An abbreviation for the name of an element is a. the atomic symbol b. a molecular formula c. a structural formula d. a linear formula
a...
An alcohol with a single hydroxyl unit attached to an end carbon atom is a. a primary alcohol b. a secondary alcohol c. a tertiary alcohol d. a quaternary alcohol
a...
An increase of oxidation number is characteristic of a. oxidation b. reduction c. hydrolysis d. neutralization
a...
An object with specific gravity of less than one, when placed in water, will a. float b. sink c. dissolve d. evaporate
a...
At room temperature, formaldehyde is a. a gas b. a liquid c. a solid d. an acid
a...
Blue litmus paper turning red would indicate a. acid b. salt c. base d. none of these
a...
Compounds which have identical molecular formulas but different structural formulas are a. isomers b. isotopes c.radicals d. aldehydes
a...
Embalming prevents the decomposition of a. proteins b. alkynes c. fatty acids d. polysaccharides
a...
Formaldehyde is produced by the catalytic oxidation of a. methanol b. ethanol c. propanol d. butanol
a...
Glycogen is a. carbohydrate b. a protein c. a lipid d. an enzyme
a...
In a solution, the substance which exists in the smaller amount is called the a. solute b. solvent c. salute d. saline
a...
NH3 has significance for the embalmer because it a. it is produced of protein decomposition b. is a product of carbohydrate decomposition c. is a product of liquid decomposition d. is capable of increasing fluid index
a...
Of the following, the one that is used in embalming fluids as an anticoagulant is a. sodium citrate b. glycerine c. sorbitol d. sodium lauryl sulfate
a...
Of the following, which type of compound yields hydrogen ions when in solution? a. acids b. bases c. salts d. oxides
a...
Organic compounds containing a benzene ring are a. aromatic compounds b. acyclic compounds c. aliphatic compounds d. allotropic compounds
a...
Organic hydroxide compounds are better known as a. alcohols b. aldehydes c. acids d. acetone
a...
Polymerization of formaldehyde is inhibited by the addition of a. methanol b. water c. eosin d. borax
a...
Substances that can be decomposed or separated into singular substances are a. compounds b. atoms c. ions d. elements
a...
Substances which will pass through the pores of animals and vegetable membranes are a. crystalloids b. colloids c. suspensions d. gramuloids
a...
Substances which would release no free ions in a solution would be a. non-electrolytes b. electrolytes c. hydrated atoms d. non-metallic crystalloids
a...
The atomic number of an element is equivalent to a. the total number of it's protons or electrons b. the total number of it's protons and electrons c. the total number of it's protons and neutrons d. the total number of it's protons, neutrons, and electrons
a...
The atomic symbol for lead is a. Pb b. Fe c. Hg d. Pt
a...
The building blocks of proteins, which are organic acids containing nitrogen, are known as a. amino acids b. fatty acids c. acetic acids d. aldehydes
a...
The by-products of the hydrolysis of fats are a. fatty acids and glycerol b. amino acids and protein c. an aldehyde and acid d. monosaccharides and water
a...
The carbon to carbon bond in an organic compound is a. a covalent bond b. an electrovalent bond c. an ionic bond d. an aliphatic bond
a...
The chemical formula of NaOH denotes which of the following compounds? a. sodium hydroxide b. sodium oxide c. potassium hydroxide d. ammonium oxide
a...
The chemical reaction between an acid and base is known as a. neutralization b. oxidation c. hydrolysis d. synthesis
a...
The complete oxidation of proteins produces a. carbon dioxide, water and urea b. amino acids c. monosaccharides d. fatty acids
a...
The factors which determine whether conditions are ordinary for the solution are a. temperature and gas b. liquid and gaseous state c. solid and liquid state d. electrovalence and covalence
a...
The formula for Magnesium Chloride is a. MgCl₂⁻ b. MgCl c. MgCl₃⁻ d. MnCl₂⁻
a...
The general formula for ethers is a. ROR b. RCOOR c. ROH d. RCOOH
a...
The general formula for organic acids is a. RCOOH b. RCHO c. RNH₂⁻ d. ROH
a...
The measure of a liquid's resistance to flow is a. viscosity b. density c. specific gravity d. surface tension
a...
The most abundant element in the universe is a. hydrogen b. sodium chloride c. hydrogen hydroxide d. nitrogen
a...
The most common form of oxygen is a. molecular oxygen b. nasent oxygen c. ozone d. rust
a...
The name given to the chemical reaction which involves the removal of oxygen from an inorganic substance is a. reduction b. osmosis c. synthesis d. ionization
a...
The organic compounds in which a hydrogen atom is replaced by an atom of an element in the Halogen family are called a. halides b. alcohols c. ketones d. aldehydes
a...
The partial oxidation of a primary alcohol yields a. an aldehyde b. a secondary alcohol c. a ketone d. an ester
a...
The partial oxidation of wood alcohol yields a. formaldehyde b. glutaraldehyde c. glycerol d. ethylene glycol
a...
The percentage by weight formaldehyde in formalin is a. 37% b. 40% c. 2% d. 12 %
a...
The polyatomic ion of hypochlorite is composed of chlorine and a. oxygen b. hydrogen c. carbon d. nitrogen
a...
The process by which particles of a single solute move from an area of higher concentration to an area of lower concentration would be a. diffusion b. hydrolysis c. osmosis d. dialysis
a...
The products of neutralization are a. salt and water b. metallic salts and non-metallic oxides c. acids and bases d. hydrides and phosphates
a...
The removal of the amino group from an amino acid is a. deamination b. decarboxylation c. imbibition d. coagulation
a...
The smallest particle of an element that retains all the properties of that element is a. a proton b. a molecule c. an atom d. an electron
a...
The substance that an enzyme acts upon is a. a substrate b. a solvent c. a solute d. a solution
a...
The swelling and bursting of blood cells in a hypotonic salt solution is called a. hemolysis b. hemoptysis c. crenation d. proteolysis
a...
The type of hardness which would be removed by boiling is a. temporary hardness b. permanent hardness c. non-metallic hardness d. binary hardness
a...
The type of solution which would cause no appreciable change in the size or condition of a blood cell placed in it would be a. isotonic b. hypotonic c. hypertonic d. acidic
a...
The valence electrons affecting metallic and non-metallic compounds are located in the a. outer orbital ring b inner orbital ring c. on in a "Z" ring d. nucleus
a...
Two or more atoms of different elements form a. molecules b. atoms c. ions d. elements
a...
What happens to the rate of the diffusion of a solute through a solvent when the temperature of the environment is decreased? a. the rate will decrease b. the rate will increase c. the rate will remain the same d. the rate will alternately decrease and increase
a...
What is involved in the cremation of a body? a. chemical change b. physical change c. chemical property d. physical property
a...
What is the atomic symbol for iron a. Fe b. F c. I d. Ir
a...
What is the basic unit of all aromatic compounds? a. benzene b. phenol c. benzaldehyde d. formaldehyde
a...
What is the freezing point of water? a. 0 degrees celcius b. 0 degrees fahrenheit c. 0 degrees kelvin d. 32 degrees celsius
a...
What type of change occurs when the composition of a substance is altered and a new substance is formed? a. chemical change b. physical change c. mechanical change d. energy change
a...
What type of compound is hemoglobin? a. a protein b. a fat c. a carbohydrate d. a lipid
a...
What type of substance is lanolin? a. a humectant b. a buffer c. an anticoagulant d. a water conditioner
a...
When ammonia combines with formaldehyde based substances it forms a neutral compound known as a. urotropin b. peroxide c. coagulate d. nitrogen
a...
When the chemical energy of a reaction is measured, the reaction will either release or absorb heat. A reaction that absorbs heat is called. a. endothermic b. potential c. hot d. exothermic
a...
Which of the following are always present in carbohydrates? a. C, H, O b. C, H, O, N c. Ca, H, O d. C, H, O, N, P, S
a...
Which of the following are used ion humectants in the preparation room? 1. sorbitol 2. glycerol 3. phenol 4. carbinol a. 1 and 2 b. 1 and 4 c. 2 and 3 d. 3 and 4
a...
Which of the following can be separated by physical methods? a. mixtures b. compounds c. bases d. salts
a...
Which of the following is NOT a hazardous substance used in embalming fluids? a. hydrogen hydroxide b. acetone c. methanol d. formaldehyde
a...
Which of the following is a property of alkane compounds? a. they are saturated hydrocarbon compounds b. they are unsaturated hydrocarbon compounds c. they contain equal numbers of carbon and hydrogen atoms d. they contain oxygen
a...
Which of the following is an aromatic substance? a. phenol b. formaldehyde c. esters d. ethers
a...
Which of the following is an example of a monohydroxy alcohol a. ethanol b. glycerol c. ethylene glycol d. methanal
a...
Which of the following is characteristic of organic compounds? a. their molecular structure complex b. their chemical reactions are immediate c. their molecules contain relatively few atoms d. the molecular weight is relatively small
a...
Which of the following is classified as a halide compound? a. carbon tetrachloride b. isopropyl alcohol c. carbon dioxide d. carbolic acid
a...
Which of the following is the simplest of the hydrocarbon compounds? a. methane b. ethane c. propane d. butane
a...
Which of the following is used only as a filler in autopsy chemical mixtures? a. perlite b. lanolin c. paraformaldehyde d. paradicholorbenzene
a...
Which of the following pairs of elements are present in a hydrocarbon compound? a. hydrogen and carbon b. hydrogen and hydroxide c. carbon and oxygen d. carbon and nitrogen
a...
Which of the following statements is FALSE concerning carbon? a. it is present in water molecules b. it forms covalent bonds with other substances c. it forms organic compounds d. it is a fundamental element in living things
a...
Which of the following will not have any effect on the solubility of a given solvent? a. capacity of the container b. temperature and pressure on the solvent c. agitation of the solvent d. basic nature of the solvent
a...
Which of the following would NOT be a factor influencing diffusion a. the presence of light b. the temperature of the solvent c. the concentration of the solute d. the amount of agitation of the solvent
a...
Which of these compounds are considered to be inorganic? 1. acids 2. bases 3. salts 4. oxides a. 1, 2, 3, and 4 b. 1, 2, and 3 c. 2, 3, and 4 d. 1 and 3
a...
Which of these compounds are organic in nature? 1. hydrocarbons 2. alcohols 3. aldehydes 4. ketones a. 1, 2, 3, and 4 b. 1, 2 and 3 c. 1, 3 and 4 d. 1 and 4
a...
Which of these compounds is described as a water-soluble gas with an irritating pungent odor? a. formaldehyde b. acetone c. sodium chloride d. benzene
a...
Which of these describes a substance which has a definite shape and a definite volume? a. solid b. liquid c. gas d. matter
a...
Which of these describes the process of autolysis? a. the self digestion of a cell b. the locomotion method of a cell c. the metabolic method of a cell d. the storage capacity of a cell
a...
Which of these is NOT a property of organic amines? a. they have a pleasant odor b. they have a disagreeable odor c. they are the by-products of the decomposition of proteins d. they contain amino groups
a...
Which of these is a property of an organic enzyme? 1. they are temperature specific 2. they are pH specific 3. they are substrate specific 4. they are labile a. 1, 2, 3 and 4 b. 2, 3 and 4 c. 1, 3 and 4 d. 1 and 2
a...
Which of these is the same as the freezing point of water? a. melting point b. boiling point c. condensation point d. evaporation point
a...
The important vehicle for an arterial solution is a. lanolin b. water c. formaldehyde d. glycerol
b
The number of fluid ounces of a 25 index arterial fluid needed to prepare one gallon (128 fl. oz.) of solution with a strength of one percent would be a. 3.2 b. 5.1 c. 12.8 d. 16
b
Which state of matter has no definite volume and no definite shape? a. liquids b. gases c. solids d. compounds
b
_________ buffer _________ quaternaries _________ deodorants _________ vehicles _________ surfactants a. germicides b. resists changes in pH c. solvents d. a substance that is capable of bringing about a reduction in the surface tension of a fluid e. a masking/perfuming agent
b a e c d
________ aldose ________ carbohydrate ________ monosaccharides ________ ketose ________ hydrolysis a. contains one saccharide group b. contains an aldehyde group in the molecules c. aldehyde or ketone derivative of a polyhydroxy alcohlol d. contains a ketone group in the molecule e. method by which the body breaks down carbohydraes
b c a d e
________ true solution ________ dilute solution ________ saturated solution ________ tincture solution ________ dialysis a. separation of crystalloids from colloids b. salt and water c. small amount of solute d. has alcohol as its solvent e. solvent has dissolved as much solute as is possible at that tempature and pressure
b c e d a
________ acid ________ base ________ salt ________ metal ________ non-metal a. product of neutralization of acid and base b. yields H ions when in solution c. characterized by positive valences d. yields OH ions when in solution e. characterized by negative valences
b d a c e
________ mixture ________ solution ________ compound ________ element ________ hydrate a. chemical combination of two or more elements in a definite proportion by weight b. heterogeneous combination of two or more substances c. compound resulting from water and crystallization included in its formula d. homogenous mixture of two or more substances e. fundamental matter
b d a e c
________ viscosity ________ osmosis ________ hypertonic ________ surface tension ________ solution a. having a greater osmotic pressure than others with which it is compared b. the resistance which a substance offers to flow c. the homogeneous molecular mixture of two or more substances d, the movement of a diffusible component through a semipermeable membrane e. the phenomena resulting from the uneven attraction that exists between the molecules at the surface of a liquid
b d a e c
_________ methyl alcohol _________ formalin _________ urotropin _________ formaldehyde _________ colloids a. product of the reaction between HCOH and NH3 b. inhibits the polymerization of HCOH c. when in solution will not pas through semi-permeable d. aqueous solution of methanol e. a colorless gas
b d a e c
________ ions ________ electrolytes ________ nonelectrolytes ________ sugars ________ acid a. example of an electrolyte b. an atom or group of atoms bearing a positive or negative charge c. example of a nonelectrolyte d. substances capable of conducting an electrical current e. substances incapable of conducting an electrical current
b d e c a
A carbohydrate molecule that contains an aldehyde group is a. ketose b. an aldose c. a fructose d. a levulose
b...
A dehydration reaction between two alcohols will form a. an ester b. an ether c. an acid d. an amine
b...
A metallic element becomes electrically charged by a. radioactivity b. giving up an electron c. receiving an electron d. electolysis
b...
A solution containing all the solute it can hold under ordinary conditions is a. supersaturated b. saturated c. dilute d. concentrated
b...
An atom that has gained or lost electrons in a chemical reaction is a. an isotope b. an ion c. a neutron d. an isomer
b...
Anything that occupies space and possesses mass is a. energy b. matter c. solid d. dense
b...
At room temperature, paraformaldehyde is in the a. gaseous state b. solid state c. liquid state d. molecular state
b...
Chlorine is a. an active metal b. a halogen c. a noble gas d. an inactive metal
b...
Esters of glycerol and fatty acids are a. acidic b. fats c. amino acids d. buters
b...
For a substance to be classified as an electrolyte, it must a. contain both an acid and a base b. conduct electricity c. release only H ions d. be chemically neutral
b...
Fundamental types of matter that cannot be converted into other kinds by ordinary chemical means are a. compounds b. elements c. mixtures d. solutions
b...
If a solution is acid, its pH will be a. equal to seven b. below seven c. above seven d. fourteen
b...
In a solution, the substance which exists in the greater amount is called the a. solute b. solvent c. salute d. saline
b...
In changing Centigrade to Fahrenheit, the conversion fraction to be used is a. 5/9 b. 9/5 c. 2 1/2 d. 3/7
b...
In neutralization, the negative ions of the acid and the positive ions of the base would form a. water b. salt c. anhydrous oxide d. hydrate
b...
In use with embalming fluids, water and methyl alcohol are two examples of a. isomers b. vehicles c. indicators d. buffers
b...
Of all chemical compounds, the most depended upon by plants and animals is a. air b. water c. acid d. salt
b...
Oxidation reactions and reduction reactions always a. release free H₂⁻ b. occur in the same reaction c. require a catalyst d. exist in separate reactions
b...
Oxygen means a. water former b. acid former c. salt former d. base former
b...
Paraformaldehyde is a polymer of a. acetaldehyde b. formaldehyde c. acetone d. paraform
b...
Readings of 7.1 and above on the pH scale would indicate a. acids b. bases c. pure water d. salt
b...
Red litmus paper showing a color change to blue indicates a. acid b. base c. neutral solution c. saline solution
b...
Soldium citrate when used in embalming fluids, functions as a/an a. wetting agent b. anticoagulant c. humectant d. modifying agent
b...
Solutions that have the same osmotic pressure are said to be a. hypertonic b. isotonic c. hypotonic d. hypoosmotic
b...
Substances which ionize in solution to produce H ions are a. salts b. acids c. bases d. halogens
b...
Substances which ionize in solution to produce OH ions are a. salts b. bases c. halogens d. acids
b...
The basic unit for weight measurement in the metric system is the a. ounce b. gram c. kilogram d. liter
b...
The capacity of a given solute to dissolve in a given solvent would be its a. density b. solubility c. viscosity d. combining capability
b...
The characteristics of a substance observed without altering the composition of it are a. chemical properties b. physical properties c. energy properties d. chemical changes
b...
The chemical reactions which involve reduction reactions are always accompanied by a. loss of heat b. oxidation reactions c. release of H₂⁻ d. creation of heat
b...
The class of compounds used in embalming fluids as perfuming agents is a. the mercaptans b. the esters c. the ethers d. the amines
b...
The density of an object divided by the density of water is a. heat of fusion b. specific gravity c. viscosity d. surface tension
b...
The digestion of cells by means of their own enzymes is called a. adipocere b. autolysis c. rigor mortis d. catabolism
b...
The formula NH3 designates the compound a. sodium hydroxide b. ammonia c. the ammonia radical d. ammonium hydroxide
b...
The general formula for aldehydes is a. ROH b. RCHO c. RCOR d. RCOOH
b...
The general formula for amines is a. RNH₃⁻ b. RNH₂⁻ c. RNH₄⁻ d. NH₃⁻
b...
The general formula for esters is a. ROR b. RCOOR c. ROH d. RCOOH
b...
The hydrolysis of proteins yields a. esters b. amino acids c. organic acids d. formic acids
b...
The name of the compound with the formula BaSO4 is a. barium sulfite b. barium sulfate c. barium sulfur d. barium tetrasulfate
b...
The outer orbital ring of metallic and non-metallic elements will contain the a. protons b. valence electrons c. valence protons d. neutrons
b...
The oxidation number for the Ammonium Radical is a. -3 b. +1 c. -1 d. -2
b...
The pH reading of normal blood would be a. 6.9 to 7.1 b. 7.3 to 7.4 c. 8.2 to 8.9 d. 8.3 to 8.4
b...
The reactive portion of organic acids is the functional group known as the a. carbonyl group b. caroxyl group c. hydroxyl group d. amino group
b...
The saponification of fatty acids in the dead human body produces a. steroids b. adipocere c. amino acids d. glycerol
b...
The simplest forms of matter are a. hydrates b. elements c. molecules d. compounds
b...
The smallest particle of a compound that retains all of the properties of that compound is a. a proton b. a molecule c. an atom d. an electron
b...
The system devised to measure Hydrogen ion concentration is a. DeLuvier's system b. the pH system c. the ionic scanner d. the metric system
b...
The type of solution which would result in the swelling and bursting of a blood cell is a. an isotonic solution b. a hypotonic solution c. a hypertonic solution d. a saturated solution
b...
Those icons in a solution which are negatively charged are called a. cathodes b. anions c. anodes d. cations
b...
Upon complete hydrolysis, carbohydrates yield a. disaccharides b. monosaccharides c. polysaccharides d. trisaccharides
b...
Water of high mineral content, such as hard water, tends to a. prevent blood clotting b. promote blood clotting c. have no effect on blood clotting d. dilate blood vessels
b...
Water will combine chemically with certain compounds to form crystalline compounds known as a. hydroxides b. hydrates c. ketones d. esters
b...
What are sulfonate compounds used for in embalming fluids? a. buffers b. surface active agents c. water conditioners d. humectants
b...
What are the chief components of air? a. compounds of oxygen and nitrogen b. the elements of oxygen and nitrogen c. primarily oxygen and sodium d. primarily hydrogen and oxygen
b...
What are the quaternary ammonium compounds used for in embalming fluids? a. anticoagulants b. disinfectants c. humectants d. buffers
b...
What is methyl salicylate used for in embalming fluids? a. buffer b. deodorant c. surfactant d. humectant
b...
What is paradicholorbenzene used for in embalming powders? a. disinfectant b. mold inhibitor c. buffer d. surfactant
b...
What is the atomic symbol for calcium? a. C b. Ca c. Cl d. Cm
b...
What is the chemical symbol for fluorine? a. Fl b. F c. Fe d. Fo
b...
What substance is changed into adipocere by the saponification process? a. enzymes b. fats c. proteins d. carbohydrates
b...
What substance is produced by the dehydration of an organic acid and an alcohol? a. an ether b. an ester c. an acid d. an alkyl halide
b...
What type of alcohol is produced by the attachment of the hydroxyl group to a carbon atom that is joined directly to two other carbon atoms in the chain? a. dihydric alcohol b. secondary alcohol c. complex alcohol d. primary alcohol
b...
What type of embalming fluids contain high concentrations of disinfectants and preservatives but generally lack active dyes and other modifying agents? a. jaundice fluids b. cavity fluids c. co-injection fluids d. humectants
b...
What type of substance is embalming fluid? a. a compound b. a mixture c. an element d. an isotope
b...
When a substance readily absorbs appreciable quantities of moisture from the air it is called a. anhydrous b. hygroscopic c. efflorescent d. amorphous
b...
Which division of chemistry deals specifically with the products used and produced by living things? a. organic chemistry b. biochemistry c. inorganic chemistry d. embalming chemistry
b...
Which of the following are esters? a. proteins b. lipids c. carbohydrates d. alcohols
b...
Which of the following is NOT true about formaldehyde? a. it is produced by the oxidation of methanol b. it can be oxidized into methanol c. it is a colorless gas at room temperature d. it is soluble in water
b...
Which of the following is an example of a saturated hydrocarbon compound? a. ethylene b. ethane c. ethyne d. ethanol
b...
Which of the following is classified as an alkane? a. formaldehyde b. ethane c. acetic acid d. acetone
b...
Which of the following is classified as an inorganic salt? a. hydrogen chloride b. sodium chloride c. sodium hydroxide d. hydrogen sulfate
b...
Which of the following is the formula for ethanol? a. C₃H₇OH b. C₂H₅OH c. C₃H₆ d. CH₃OH
b...
Which of the following substances is used as a buffer in arterial fluid? a. sorbitol b. E.D.T.A. c. heparin d. lanolin
b...
Which of the following would be classified as a non-electrolyte? a. acid b. sugar c. base d. esters
b...
Which of these compounds contain the ammonium radical? a. ternaries b. quaternaries c. secondaries d. primaries
b...
Which of these describes protein molecules? a. many monosaccharides linked together b. many amino acids linked together c. many ketones linked together d. many fatty acids linked together
b...
Which one of the following chemicals, when contained in water in the form of salts, causes "hard water"? a. potassium b. calcium c. manganese d. sodium
b...
Which state of matter is described as having an indefinite shape and a definite volume? a. solid b. liquid c. gas d. compound
b...
Which term is used as a synonymous term for polyatomic ion? a. mixture b. radical c. compound d. solution
b...
Adipocere is a derivative of a. body proteins b. body carbohydrates c. body fats d. blood sugar
c
In arterial fluids, glycols act as a. dyes b. buffers c. humectants d. surfactants
c
The swelling of a body during embalming is due to a. dialysis b. surface tension c. osmosis d. distribution
c
________ colloidal ________ crystalloids ________ hypotonic solution ________ hypertonic solution ________ physiological salt solution a. can crystallize out of a solution b. solution with lower concentration c. "glue-like" d. .9% NaCl solution e. solution with greater concentration
c a b e d
________ acetone ________ methanol ________ ethanoic acid ________ methanol ________ formalin a. another name for methyl alcohol b. another name for formaldehyde c. a ketone d. oxidation product of acetaldehyde e. aqueous solution of formaldehyde
c a d b e
________ hydrates ________ hygoscopic ________ hydrolysis ________ solubility ________ electrolysis a. substance which absorbs moisture from air b. capability to enter a solvent to form a solution c. compounds produced when water of crystallization is part of their formula d. breaking down with electricity e. splitting of a compound by the action of water
c a e b d
________ cathode ________ cation ________ ion ________ anion ________ anode a. a positive electrode b. a positively charged atom or group of atoms c. a negatively electrode d. a negatively charged atom or group of atoms e. a positively or negatively charged atom or group of atoms
c b e d a
________ viscosity ________ solidification ________ surface tension ________ boiling ________ solution a. tight grouping together of surface molecules b. homogeneous mixture made up of two or more substances c. refers to the thickness of a liquid d. molecules attract forming crystals e. molecules absorb heat and pull apart
c d a e b
________ neutralization ________ solubility ________ oxidation ________ reduction ________ ionization a. process of disassociating into ions when in solution b. chemical combination with oxygen c. acid plus base produces salt and water d. capacity of solute to enter solvent to create a solution e. always exists with oxidation
c d b e a
________ H2O ________ H2O2 ________ NH4OH ________ O3 ________ O2 a. formula for ozone b. formula for molecular oxygen c. formula for water d. formula for hydrogen e. a base
c d e a b
________ colloidal ________ tincture solution ________ dialysis ________ agitation ________ true solution a. salt and water b. factor which influences solubility c. milk, gelatin, glue d. has alcohol as its solvent e. separation of crystalloids from colloids
c d e b a
________ acid ________ bases ________ salts ________ oxides ________ pH a. product of neutralization reaction b. oxygen plus another c. substance which when in solution liberates hydrogen ions d. the system used to measure the amount of acidity and alkalinity e. substance which when in solution liberates by hydroxyl
c e a b d
________ solute ________ solvent ________ dilute ________ concentrated ________ saturated a. solution containing a relatively small amount of solute b. solution that contains all of the solute it can hold at that temperature c. present in the minority d. solution that contains a relatively large amount of solute e. present in the majority amount
c e a d b
A humectant commonly used in embalming fluids is a. borax b. sodium citrate c. sorbitol d. phenol
c...
A solution containing a relatively small amount of solute is a. supersaturated b. saturated c. dilute d. concentrated
c...
A solution containing less solute than it could hold under ordinary conditions is a. supersaturated b. saturated c. unsaturated d. dilute
c...
A substance which differentiates between acid and base solutions is a. a metric detector b. an ionic differentiator c. an indicator d. a cyclotron
c...
A trihydroxyl alcohol found in both embalming fluids and in the structure of lipids and fats is a. ethanol b. methanol c. glycerol d. sorbitol
c...
Adipocere is chemically most similar to a. a protein b. a carbohydrate c. a soap d. a sugar
c...
An acid plus a base will react to give water and a. CO₂⁻ b. H₂SO₄⁻ c. a salt d. Al(OH)₃⁻
c...
Another name for methanoic acid is a. acetic acid b. stearic acid c. formic acid d. palmitic acid
c...
Another name for methyl alcohol is a. grain alcohol b. rubbing alcohol c. wood alcohol d. isopropyl alcohol
c...
Bases 1. taste sour 2. yield hydroxide ions upon ionization 3. are proton acceptors 4. have a pH of 0-7 a. 1 and 2 b. 1 and 4 c. 2 and 3 d. 3 and 4
c...
Because of the nature of formaldehyde, which one of the following compounds is added to inhibit polymerization when formaldehyde is dissolved in water? a. ethane b. methane c. methanol d. propanol
c...
Blue litmus paper placed in solution and showing no color change would indicate a. acid b. salt c. base d. none of these
c...
Borax is used in embalming fluids to a. mask the odor of formaldehyde b. stain tissues c. adjust pH d. preserve tissues
c...
Deamination and decarboxylation occur simultaneously during a. embalming b. photosynthesis c. purtrefaction d. emulsification
c...
Decomposition of the human body is a. a physical property b. a physical change c. a chemical change d. a chemical property
c...
Deodorants are used in embalming fluids as a. surfactants b. humectants c. masking agents d. buffers
c...
Fluorine and iodine are related to a. helium b. sodium c. bromine d. mercury
c...
Hg is the atomic symbol for a. helium b. halogen c. mercury d. silver
c...
How many carbon atoms are present in a hexose monosaccharide compound. a. two b. four c. six d. eight
c...
How many pairs of electrons are shared between two adjacent carbon atoms in an alkyne compound? a. one b. two c. three d. four
c...
In a neutralization reaction the reactants are a. salt and water b. metallic salts and non-metallic oxides c. acids and bases d. non-metallic salts and metallic oxides
c...
Organic chemistry is a study of a. synthetic compounds b. metabolic compounds c. carbon compounds d. hydrogen compounds
c...
Oxygen occurs in the free state as a. O b. O₃⁻ c. O₂⁻ d. All of these
c...
Proteins are a. waxes b. oils c. amphoteric d. inorganic
c...
Proteins are compounds a. composed of many aldoses linked together b. composed of many ketoses linked together c. composed of many amino acids linked together d. composed of glycerine and fatty acid molecules combined together
c...
Red litmus paper placed in solution and showing no color change would indicate a. base b. salt c. acid d. none of these
c...
Sodium lauryl sulfate is used in embalming fluids as a. a dye b. a preservative c. a surfactant d. a vehicle
c...
Substances which release both positively and negatively charged ions when, in solution, are classified as a. solutes b. non-electrolytes c. electrolytes d. hydrates
c...
Sugar in the bloodstream is in the form of a. glycogen b. galactose c. glucose d. lactose
c...
The charge of an atom that is determined by the number of electrons lost, gained, or shared in a chemical reaction is a. the atomic number b. the atomic mass number c. the oxidation number d. the valence number
c...
The chemical used in embalming fluids to reduce surface tension and to aid in penetration, is known as a/an a. humectant b. buffer c. surfactant d. emollient
c...
The complete oxidation of carbohydrates produces a. monosaccharides b. carbon dioxide and fatty acids c. carbon dioxide and water d. water and alcohol
c...
The final hydrolytic products of polysaccharides are a. disaccharides b. starches c. monosaccharides d. enzymes
c...
The function of glycerol in embalming fluids is a. to preserve b. to dehydrate c. to act as a humectant d. to preserve body fats
c...
The main constituent of an acid is a. oxygen b. oxide c. hydrogen d. hydroxyl
c...
The metric prefix "kilo" means a. hundred b. thousandth c. thousand d. tenth
c...
The most abundant compound known in inorganic chemistry is a. dirt b. salt c. water d. oxygen
c...
The most abundant element on earth is a. nitrogen b. hydrogen c. oxygen d. chlorine
c...
The most complex of all carbohydrates are the a. monosaccharides b. disaccharides c. polysaccharides d. trisaccharides
c...
The oxidation of formaldehyde forms a. lactic acid b. stearic acid c. formic acid d. acetic acid
c...
The paper most commonly used as an indicator is a. filter paper b. lithium paper c. litmus paper d. cadmium paper
c...
The passage of a solid substance directly into the gaseous state is a. freezing b. crystallization c. sublimation d. boiling
c...
The process by which the solvent of a solution moves through a semipermeable membrane from a solution of lower concentration to one of higher concentration is called a. diffusion b. hemolysis c. osmosis d. dialysis
c...
The science that deals with the nature of matter and the changes that matter undergoes is a. anatomy b. physiology c. chemistry d. biology
c...
The shrinking of blood cells in a hypertonic salt solution is called a. hemolysis b. hemoptysis c. crenation d. proteolysis
c...
The significance of hard water to the embalmer is that the salts that cause hardness in water also a. dilute embalming fluid b. cause autolysis to take place c. cause blood clotting d. cause rapid dehydration
c...
The study of matter derived from inanimate or lifeless things is a. biochemistry b. alchemy c. inorganic chemistry d. organic chemicstry
c...
The temperature and pressure at which a solid turns into a liquid is a. the condensation point b. the boiling point c. the melting point d. the sublimination point
c...
The total amount of formaldehyde required to preserve all of the protein in the body is a. the saponification demand b. the decarboxylation demand c. the formaldehyde demand d. the formaldehyde residual
c...
The type of hydrocarbon in which the carbon atoms are linked together by double bonds is a. saturated b. alkynes c. alkenes d. alkanes
c...
The type of solution which would result in the shrinking or shriveling of a blood cell is a. an isotonic solution b. a hypotonic solution c. a hypertonic solution d. an isotopic solution
c...
The usual manner of chemical union between inorganic compounds is a. non-metal dissolved in metals b. metals dissolved into non-metals c. non-metals gain electrons, metals lose electrons d. metals receive protons
c...
Theoretically, the complete reduction of the compound formaldehyde would produce a. methanol b. ethylene c. methane d. formic acid
c...
Those characteristics of a substance as it exists in nature are the a. chemical properties b. potential properties c. physical properties d. physical changes
c...
Two or more atoms of the same element form a. a radical b. an ion c. a molecule d. an isotope
c...
Two or more substances that are combined together but are NOT chemically combined form a. a compound b. an element c. a mixture d. a state
c...
Water, when used in embalming fluids , is used as a a. preservative b. modifying agent c. vehicle d. buffer
c...
What is another name for physiological chemistry? a. organic chemistry b. inorganic chemistry c. biochemistry d. analytical chemistry
c...
What is benzaldehyde used for in embalming fluids? a. dye b. buffer c. deodorant d. humectant
c...
What is the electrical charge of an electron? a. neutral b. positive c. negative d. zero
c...
What is the function of plaster of paris in hardening compound a. coloring b. preservation c. dehydration d. disinfection
c...
What type of organic substances are described as derivatives of ammonia? a. proteins b. acids c. amines d. ethers
c...
Which embalming fluids generally have a higher index than arterial fluids? a. supplemental fluids b. modifying agents c. cavity fluids d. surfactants
c...
Which of the following can be defined as a gorup of atoms chemically combined and having a neutral charge? a. radicals b. mixtures c. compounds d. isotopes
c...
Which of the following is NOT characteristic of a jaundice fluid? a. strong reducing agents b. strong active dye c. high index of formaldehyde d. low index of formaldehyde
c...
Which of the following is a chemical property? a. density b. boiling point c. reactivity d. solubility
c...
Which of the following is an example of an unsaturated hydrocarbon compound? a. methane b. ethane c. ethene d. glucose
c...
Which of the following is classified as a ketone? a. propane b. propanol c. propanone d. propanoate
c...
Which of the following is classified as an alkyne? a. ethane b. ethene c. ethyne d. ethanoate
c...
Which of the following is described as an organic acid that contains nitrogen? a. nitric acid b. nitrous acid c. amino acid d. fatty acid
c...
Which of the following yield both metallic and non-metallic ions in solution? a. acids b. bases c. salts d. ethers
c...
Which of these substances is a ternary compound? 1. hydrochloric acid 2. hydrosulfuric acid 3. sulfuric acid 4. nirtric acid a. 1, 2, 3 and 4 b. 1 and 2 c. 3 and 4 d. 1 and 3
c...
With both red and blue litmus paper placed in the same solution, and neither showing any color change, this would indicate a. acid b. base c. neutral solution d. vinegar solution
c...
A substance in embalming fluid which serves to retain moisture in the body is known as a a. desiccant b. surfactant c. dehydrant d. humectant
d
Citrates and oxalates are usually added to embalming fluids to act as a. preservatives b. vehicles c. surfactants d. anticoagulants
d
Mercuric chloride is a good disinfectant. It is a. found in most arterial fluids b. found in most cavity fluids c found in most powdered autopsy compounds d. prohibited by law
d
Paraformaldehyde is formaldehyde in a a. liquid state b. isotopic state c. gaseous state d. solid state
d
Phenol is used in embalming fluids as a a. dye b. surfactant c. vehicle d. preservative
d
The complete oxidation of lipids produces a. glycerol and fatty acids b. carbon dioxide and fatty acid c. glycerol and water d. carbon dioxide and water
d
The pH system is so devised that an even balance of H and OH ions would produce a reading of a. 14 b. 0 c. 7.4 d. 7
d
Which of the following is NOT important in determining the shelf-life of an arterial fluid? a. the presence of buffers b. the presence of anti-polymerization agents c. exposure to light d. cost of the fluid
d
Which of these is classified as a physical property of water? a. it reacts with sodium to release hydrogen b. it is an oxidizing agent c. it promotes chemical reactions d. it expands when it freezes
d
________ dilute solution ________ supersaturated ________ concentrated solution ________ saturated solution ________ unsaturated solution a. contains more solute than it can hold at ordinary times under ordinary conditions b. more solute can be dissolved at a given temperature c. larger amount of solute in relation to solvent d. small amount of solute in relation to solvent e. solvent has dissolved as much solute as is possible at that temperature and pressure
d a c e b
________ equation ________ formula ________ symbol ________ atom ________ radical a. an expression representative of a compound b. a polyatomic ion c. an abbreviated expression for an element d. an expression that represents a chemical reaction e. the smallest particle of an element capable of entering into a chemical reaction
d a c e b
________ isotonic solutions ________ osmosis ________ dialysis ________ hypotonic solutions ________ hypertonic solutions a. separation of crystalloids from colloids by means of a semipermeable membrane b. solvent moves to an area of greater concentration through a semipermeable membrane c. causes blood cells placed in it to swell d. equal osmotic pressure in two or more solutions e. causes blood cells placed in it to shrivel
d b a c e
________ diffusion ________ colloid ________ osmosis ________ crystalloid ________ dialysis a. the diffusion of a solvent through a membrane b. will not pass through a semipermeable membrane c. separation of crystalloids from colloids by means of a semipermeable membrane d. the movement of molecules from a high to a low concentration e. will pass through a semipermeable membrane
d b a e c
________ electron ________ proton ________ neutron ________ nucleus ________ orbits a. subatomic particle with no charge b. subatomic particle with positive charge c. location of electrons d. subatomic particles with a negative charge e. location of protons
d b a e c
________ oxide ________ combustion ________ kindling point ________ catalyst ________ decay a. the lowest temperature at which a substance begins to burn b. any substance that will speed up or slow down a chemical reaction c. the slow oxidation of organic matter d. a compound containing oxygen in addition to another element e. chemical reaction involving the production of heat and light
d e a b c
A diagram that shows the arrangement of the atoms in a compound is a. a linear formula b. a molecular formula c. an empircal formula d. a structural formula
d...
A non-metallic element becomes electrically charged by a. radioactivity b. coming in contact with a dry cell unit c. giving up an electron d. receiving an electron
d...
A positively charged particle in the nucleus of an atom is a. a cation b. an electron c. a neutron d. a proton
d...
A solution containing a relatively large amount of solute is a. supersaturated b. saturated c. dilute d. concentrated
d...
All open chained hydrocarbons are classified as a. carbocyclic b. aromatic c. saturated d. aliphatic
d...
Another name for ethanoic acid is a. methanoic acid b. formic acid c. lactic acid d. acetic acid
d...
Another name for glucose is a. milk sugar b. fruit sugar c. cane sugar d. dextrose
d...
Chemical reactions involving both oxidation and reduction reactions are sometimes referred to as a. ox-red reactions b. neutralization reactions c. ionization reactions d. redox reactions
d...
Chemistry is the study of a. the composition of matter b. elements, compounds, and mixtures c. the changes that matter undergoes d. all of these
d...
Electrolytes are substances which, in solution, a. release negative ions only b. form bases c. release positive ions only d. release both positive and negative ions
d...
Eosine, ponceau, and erythrosine are used in embalming fluids as a. surfactants b. preservative c. disinfectants d. dyes
d...
Fats supply our bodies with which of the following? a. protection b. reserve food supply c. heat insulation d. all of these
d...
Formaldehyde in terms of embalming, is used as a a. preservative b. disinfectant c. humectant d. both a and b
d...
How many bonds must each carbon atom hace in a stable organic molecule? a. one b. two c. three d. four
d...
How many main classes of inorganic compounds are there? a. one b. two c. three d. four
d...
Hydrates can easily be broken up to form anhydrous compounds by a. freezing b. agitation c. radioactivity d. heating
d...
Hydrocarbon compounds that contain at least one double or triple bond between two adjacent carbon atoms are a. saturated b. aliphatic c. cyclic d. unsaturated
d...
In neutralization, the H ions and the OH ions would a. repel each other b. attract each other c. form water d. both b and c
d...
In the compound water, hardness is caused by a. radioactivity b. non-metallic residue c. absence of metallic salts d. presence of metallic salts
d...
Isotopes differ on the basis of a. valence b. atomic number c. crystalline shape d. atomic weight
d...
Most acids, bases, and salts, when in solution, make very good a. non-metallic crystalloids b. non-electrolytes c. solvents d. electrolytes
d...
Of the following, the class of chemicals that are used as humectants in embalming fluids are a. aldehydes b. phenolics c. aromatic esters d. polyhydric alcohols
d...
Organic compounds held together by peptide bonds are a. fats b. carbohydrates c. starches d. proteins
d...
Oxygen and nitrogen in the air are a. not chemically united b. bionic molecules of the two elements c. diatomic molecules of the two elements d. both a and c
d...
Surfactants are also referred to as a. buffers b. vehicles c. anticoagulants d. wetting agents
d...
The abbreviated expression representing a compound is a. a symbol b. a molecule c. a radical d. a formula
d...
The area of chemistry that involves all the living processes that occur in both health and in disease is a. qualitative analysis b. embalming chemistry c. organic chemistry d. biochemistry
d...
The atmosphere in which we live is a. a compound b. composed of only one chemical element c. a solution d. a mixture
d...
The chemical symbol for potassium is a. P b. Po c. Na d. K
d...
The formula R-OH is a. a graphic formula b. a structural formula c. a line formula d. a general formula
d...
The function of methanal in embalming fluids is a. a penetrating agent b. buffer c. an anticoagulant d. a preservative
d...
The general formula for alcohols is a. RCHO b. HCHO c. RCOR d. ROH
d...
The general formula for ketones is a. RCOOH b. RNH₂⁻ c. RCHO d. RCOR
d...
The manner in which most metals and non-metals unite chemically is by a. covalence b. sharing electrons c. exchanging protons d. electron transfer
d...
The name given to the chemical reaction in which oxygen combines with another substance is a. dialysis b. ionization c. decomposition d. oxidation
d...
The passage of a solvent through a semipermeable membrane from an area of lesser concentration to an area of higher concentration is a. dialysis b. suspensions c. diffusions d. osmosis
d...
The process used to separate colloidal solutes from crystalloidal solutes to a. diffusion b. hemolysis c. osmosis d. dialysis
d...
The removal of water from a compound is a. hydration b. imbibition c. oxidation d. dehydration
d...
The splitting apart of a compound by water is called a. non-electrolysis b. electrolysis c. hemolysis d. hydrolysis
d...
The standard unit of volume in the metric system is the a. meter b. calorie c. gram d. liter
d...
Those ions in a solution which are positively charged are called a. cathodes b. anions c. anodes d. cations
d...
Upon hydrolysis, proteins yield a. sugars b. amines c. amides d. amino acids
d...
What is the study of non-carbon compounds? a. physiological chemistry b. embalming chemistry c. organic chemistry d. inorganic chemistry
d...
What property is exhibited by collodial substances which allows them to absorb large quantities of water? a. decarboxylation b. deamination c. saponification d. imbibition
d...
What temperature is shown on a Centigrade thermometer when a Fahrenheit thermometer reads 212? a. +273 b. +32 c. 0 d. +100
d...
Which of the following elements or type of element is important in the production of a decomposition resistant substance known as coagulate? a. chlorine b. oxygen c. the halogens d. nitrogen
d...
Which of the following is NOT a characteristic of an inorganic acid? a. the main constituent is hydrogen b. the pH is lower than 7.0 c. the compounds yield hydrogen upon hydrolysis d. the main constituent is hydroxide
d...
Which of the following is NOT an organic compound? a. carbon tetrachloride b. paradichlorobenzene c. acetone d. sodium chloride
d...
Which of the following is NOT used as a humectant in embalming fluids? a. lanolin b. sorbitol c. glycerol d. sodium citrate
d...
Which of the following is a physical property of matter? a. sulubility b. specific gravity c. density d. all of these
d...
Which of the following is an alkane? a. C₂H₂ b. C₂H₄ c. C₂H₅ d. C₂H₆
d...
Which of the following is an example of a dialdehyde compound? a. methanal b. acetaldehyde c. formaldehyde d. glutaraldehyde
d...
Which of the following is an example of a polyhydroxy alcohol? a. methanol b. ethanol c. glyoxal d. sorbitol
d...
Which of the following is another name for cadaverine? a. 1,4-diaminobutane b. putrescine c. aminomethane d. 1,5-diaminopentane
d...
Which of the following is mainly affected by putrefaction? a. carbohydrates b. lipids c. starches d. proteins
d...
Which of the following is not a chemical change? a. combustion b. decomposition of remains c. rusting of iron d. tearing of paper
d...
Which of the following is the result of two or more elements chemically united in a definite proportion by weight? a. a solution b. a mixture c. an element d. a compound
d...
Which of the following names is a synonym for the compound called phenol? a. benzoic acid b. boric acid c. carbonic acid d. carbolic acid
d...
Which of the following solutions contains the most solute? a. dilute b. concentrated c. saturated d. supersaturated
d...
Which of the following statements is FALSE concerning arterial fluids? a. They are normally injected into the arterial system b. They normally contain dye c. They normally contain surfactants d. They are normally injected into body cavities
d...
Which of the following statements most accurately states a basic fact about oxidation and reduction reactions? a. they always create acids b. they always create bases c. they occur only when acids neutralize bases d. one cannot take place without the other
d...
Which of the following will pass through both a filter and a semipermeable membrane? a. a colloidal solution b. an emulsion c. a suspension d. a true solution
d...
Which of these is a disaccharide? a. glucose b. cellulose c. starch d. sucrose
d...
_________ enzymes _________ blood sugar _________ pepsin _________ autolysis _________ putrefaction a. protein - digesting enzyme b. anaerobic decomposition of proteins c. glucose d. self- digestion of cell or tissue e. specific in their action
e c a d b
________ 212 degrees ________ 0 degrees ________ 32 degrees ________ 100 degrees ________ 37 degrees a. centigrade normal body temperature b. centigrade boiling point of water c. Fahrenheit freezing point of water d. centigrade freezing point of water e. Fahrenheit boiling point of water
e d c b a
true or false atmospheric pressure variations on the surface of the solvent will not affect the solubility of a gas
f
true or false bases contain the hydrogen ion or proton
f
true or false benzaldehyde is also known as oil of wintergreen
f
true or false bicarbonate hardness is called permanent hardness and may be soften by boiling
f
true or false borax is used in embalming fluid to mask the odor of formaldehyde
f
true or false colloidal particles are smaller than crystalloids
f
true or false commercial formalin is a 10% aqueous solution of formaldehyde
f
true or false during life, the normal pH of most fluids is slightly acidic
f
true or false embalming fluid is a compound
f
true or false ester as a class have an unpleasant odor
f
true or false ethers are responsible for giving many flowers and fruits their characteristic odors
f
true or false fates are composed of amino acids
f
true or false fats are amphoteric
f
true or false formalin is 37% by volume and 40% by weight formaldehyde gas dissolved in water
f
true or false formalin is a compound
f
true or false glucose is an example of a disaccharide
f
true or false glycerol acts as a preservative in embalming fluids
f
true or false glycerol is used in embalming fluid primarily for its dehydrating action
f
true or false glycogen is an example of a disaccharide
f
true or false halogen means water former
f
true or false hemoglobin is an example of a carbohydrate
f
true or false humectants are dehydrating agents
f
true or false hydrogen is an inactive element
f
true or false in a solution the substance which exist in the greater amount is called the solute
f
true or false in a solution the substance which exists in the smaller amount is called the solvent
f
true or false in a solution, the substance which exists in the greater amount is called the solute
f
true or false lanolin and gylcerol act as buffers
f
true or false passage of embalming fluid form the large arteries to the the small arteries is known as fluid diffusion
f
true or false passing from the solid to gaseous state directly is referred to as osssification
f
true or false putrefaction is a type of decomposition of dead organic matter under aerobic conditions
f
true or false red litmus paper place in a solution and showing a color change from red to blue would indicate an acid
f
true or false reduction is the loss of electrons by an atom with an increase in positive valence
f
true or false secondary alcohols have two OH groupds
f
true or false since the amino acids contain the NH2 group they exhibit only basic properties
f
true or false sodium citrate is used in embalming fluids to reduce the surface tensions
f
true or false strong acids ionize poorly
f
true or false sucrose is a monosaccharide
f
true or false surfactants are used as wetting agents to increase surface tension and reduce penetration
f
true or false the amino acids do not coagulate when treated with protein coagulating agents
f
true or false the dyes used to restore a natural and life like appearance are non staining dyes
f
true or false the first member of the amine compounds is ethyl amine
f
true or false the functional group of the organic acids is known as the carbonyl group
f
true or false the general formula for esters is RCOOH
f
true or false the line formula for formic acid is CH3COOH
f
true or false the line formula for methanal is CH3OH
f
true or false the main constituent of an acid is oxygen
f
true or false the neutral reading on the pH scale is between 7.3 and 7.4
f
true or false the pH scale reading for normal blood is 7.0
f
true or false the partial oxidation of aldehydes yields alcohols
f
true or false the penetration power of hardening compounds is high
f
true or false the rate of diffusion is increased by a decrease in temperature
f
true or false the valence electrons of both metallic and non metallic substances are usually found in the nucleus of the atom
f
true or false there can be no more than one solute in a solution
f
true or false water containing calcium or magnesium salts in solution is called soft water
f
true or false when amines are dissolved in water they become acidic
f
true or false a saturated solution is one in which the solvent has dissolved as much solute as is possible at that temperature and pressure
t
true or false a solution appears to be composed of only one substance
t
true or false a solution which has alcohol as its solvent is a known as a tincture solution
t
true or false a solution which has water as its solvent is an aqueous solution
t
true or false a solution which is hypotonic to the blood will cause red blood cells to swell and burst
t
true or false a substance which in solution releases both positively and negatively charged ions is classified as an electrolyte
t
true or false a supersaturated solution exists when the conditions of temperature and pressure are other then ordinary and there is more solute dissolved than the solvent will hold under normal conditions
t
true or false acetone is a good organic solvent
t
true or false acetone is the first member of the ketone series
t
true or false acid + bases react to produce a salt + water
t
true or false acids and bases which undergo the neutralization process form salt and water
t
true or false after death, the pH of the blood of the body under goes a change
t
true or false alcohol can be used as a solvent in embalming fluid solutions
t
true or false alkenes and alkynes are unsaturated aliphatic compounds
t
true or false alkyl halides are formed by the replacement of 1 or more hydrogen atoms in the aliphatic hydrocarbons with a halogen
t
true or false all alkanes are saturated
t
true or false ammonia is one of the gases produced from the decomposition of proteins
t
true or false ammonia reacts chemically with formaldehyde
t
true or false an emulsion is a mixture of two or more mutaully is insoluble substance
t
true or false an example of a suspension is clay and water
t
true or false an unsaturated solution is one with less solute than the solvent is capable of holding under ordinary conditions
t
true or false as a group amines are toxic
t
true or false autolysis is the digestion of cells by means of their own enzymes
t
true or false bases ionize into hydroxyl ions
t
true or false blue litmus paper placed in a base solution would show no significant color change
t
true or false buffers are used to control pH and toxicity of the body tissue
t
true or false circulation of embalming fluid through the arteries and capillaries is known as fluid distribution
t
true or false co-injection fluids contain reducing agents, bleaching agents and counter-staining compounds
t
true or false crystalloid particles are smaller than colloids
t
true or false crystalloidal solutions are known as true solutions
t
true or false electrolytes conduct an electric current
t
true or false enzymes are destroyed by heat
t
true or false ethyl alcohol is also known as a grain alcohol
t
true or false ethyl ether is important since it can be used as a general anesthetic
t
true or false fats have a lower specific gravity than water
t
true or false fermentation is the decomposition of carbohydrates brought about by the action of enzymes
t
true or false formaldehyde has a marked tendency to polymerize
t
true or false formaldehyde is a powerful germicide and disinfectant
t
true or false formaldehyde is polymerized on heating to form paraform or paraformaldehyde
t
true or false formaldehyde is readily oxidized to formic acid
t
true or false formaldehyde is toxic to living tissue
t
true or false formaldehyde may be neutralized by ammonia
t
true or false formalin is an example of a solution
t
true or false germicides are agents capable of destroying bacteria
t
true or false glycerol is complex alcohol
t
true or false glycine is an amino acid
t
true or false heat will cause HCHO gas to be liberated more readily
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true or false hot formaldehyde solutions give off formaldehyde gas more readily than cold
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true or false hydrogen is contained in all acids
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true or false hydrogen plus certain non metals will yield an acid
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true or false hydrolysis is the process y which water splits compounds and introduces its own constituents into the products formed
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true or false imbibition is the ability of colloidal substances to absorb water
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true or false in electrolysis cations are drawn to the negative pole
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true or false in electrolysis cations are drawn to the positive pole
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true or false jaundice fluids contain reducing agents, bleaching agents and counter staining compounds
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true or false ketones are made from the oxidation of a secondary alcohol
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true or false lactic acid is important to the embalmer because it is involved in the on set of rigor mortis
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true or false light will bleach out the cosmetic effect of embalming fluid
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true or false metallic elements or radicals usually have a positive valence
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true or false metallic elements usually combine chemically by giving up an electron or electrons from its outer orbital ring
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true or false methanal hardens proteins
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true or false methanal is a colorless gas with an irritating odor
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true or false methanal is a synonymous name for formaldehyde
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true or false methanoic acid is an example of an organic acid
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true or false modifying agents used ot break up clots and prevent further clotting as known as anticoagulants
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true or false monosaccharides are represented by the molecular formula C6H12O6
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true or false most embalming fluids contain buffers to control the pH within them
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true or false non metallic elements or radicals usually have a negative valence
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true or false normal boy temperature is considered to be 37 degrees or 98.6 degrees F
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true or false organic acids as a class are weak acids
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true or false oxygen and hydrogen in the fee state exist in their molecular form as 02 and H2
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true or false phenolic compounds and alcohols are used in arterial fluids as preservatives and tissue fixatives
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true or false ponceau is used in embalming chemicals as a dye
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true or false preservative chemicals inactivate microorganisms
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true or false proteins are amphoteric
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true or false proteins are characterized as being very large complex molecules
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true or false proteins are components of all living matter
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true or false proteins as well as amino acids are amphoteric
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true or false proteins contain the elements C, H,O,N and sometimes S and P
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true or false ptomaine is a very poisonous, organic, base like substance containing nitrogen
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true or false ptomaines are basic compounds formed during the decomposition of animal and vegetables matter
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true or false reading on the pH scale from 0 to 6.9 designate acid
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true or false reading on the pH scale of 7.1 to 14 designate bases
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true or false salivary amylase or pytalin is a carbohydrate splitting enzyme
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true or false salts are compounds which have a metal as the positive ion and a non metal or radical as the negative ion
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true or false saponification refers to the action of an alkali on a fat
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true or false secondary dilution of the embalming solution is one of the problems presented by an edematous
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true or false sodium citrate and EDTA will soften water
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true or false sodium lauryl sulfate is an example of a surface active agent
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true or false solubility is a term relating to the ability of a solute to enter into a particular solvent to create a solution
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true or false solutions that have the same osmotic pressure are said to be isotonic
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true or false sorbitol is used in arterial fluids as a modifying agent
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true or false substances which attract and absorb moisture from the air are called hygroscopic substance
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true or false sugar and water form a true solution
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true or false temporary hard water can be softened by boiling
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true or false the action of certain metals on water will produce hydrogen
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true or false the action of enzymes can be altered by heat
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true or false the carbonhydrate in blood is in the form of glucose
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true or false the change of a gas or vapor into a liquid is known as condensation
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true or false the characteristic firming action of formaldehyde is inhibited as the proteins decompose
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true or false the composition of water by volume is two parts hydrogen and one part oxygen
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true or false the ethers are many times referred to as the organic oxides
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true or false the formaldehyde index is best defined as the number of grams of methanal, the solute per 100ml of solution
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true or false the general formula for the amines is RNH2
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true or false the main constituent of an acid is hydrogen
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true or false the meaning of the word oxygen is acid former
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true or false the most abundant compound of earth is water
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true or false the numerical range of the pH scale is 0 to 14
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true or false the oxidation of carbohydrates is normally the main source of body energy
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true or false the oxidation of iron will form an oxide called rust
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true or false the oxygen involved in decay is free atmospheric oxygen
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true or false the pH system is a method of measuring the H ion concentration of a substance in solution
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true or false the passage of a solvent through a semipermeable membrane is called osmosis
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true or false the presence of glycerine in embalming fluids increases their ability to diffuse
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true or false the process of the separation of crystalloids from colloids is known as dialysis
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true or false the release of ions from a substance in solution is ionization
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true or false the saturated hydrocarbons are compounds containing a single covalent bond between adjacent carbon atoms
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true or false the secondary dilution of embalming fluid takes place when the solution mixes with the blood and tissue fluid
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true or false the solubility of a solid solute is usually increased by an increase in the temperature of the solvent
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true or false the solvent is the substance which causes the solute to be dissolved
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true or false the substrate is the material upon which an enzyme acts
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true or false the valence of the halogen family is -1
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true or false tissue gas is caused by gas producing bacteria
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true or false to form proteins many amino acids are linked together by peptide linkages
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true or false toxicology is that science which deals with posions, their action on the body and the treatment of their effects
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true or false vinegar is a dilute solution of acetic acid
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true or false viscosity means the resistance of a liquid to flow
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true or false water containing metallic ions such as calcium, magnesium or iron is called hard water
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true or false water is considered the universal solvent
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true or false water is used as the solvent in embalming fluid
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true or false when a primary alcohol is oxidized and aldehyde is formed
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true or false when water of crystallization is removed from a crystalline substance, the resulting substance is called anhydrous
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true or false wood alcohol inhibits the polymerization of formaldehyde
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true or false another name for formaldehyde is methanol
f
true or false any carbohydrate that contains an aldehyde group is classified as a ketose
f
true or false HCHO will not firm or gel protein
f
true or false a blood cell placed in a solution hypertonicn to its contents will show no change is its size or condition
f
true or false a blood cell placed in a solution hypotonic to its contents will lose moisture and shrivel
f
true or false a blood cell placed in a solution isotonic to its contents will swell and brust
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true or false a dilute solution contains a relatively small amount of solvent
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true or false a heterogenous mixture of two or more substance is called a solution
f
true or false a hypertonic solution is one with a lover concentration
f
true or false a negatively charge ion is called an cation
f
true or false a positively charged ion is called an anion
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true or false a solution containing a large amount of solute is said to be dilute
f
true or false a solution containing all the solute it is capable of holding under ordinary conditions is called supersaturated
f
true or false a solution with equal amounts of solvent and solute is called an isotonic solution
f
true or false acetaldehyde is prepared by the oxidation of methyl alcohol
f
true or false acid, bases and salts are not good electrolytes because they ionize
f
true or false all monosaccharides can be represented by the formula C12H22O11
f
true or false amino acids do not coagulate when treated with protein coagulating agent
f
true or false an acid is a chemical combination of hydrogen and a metallic element
f
true or false an ester may be produced by the interaction of alcohol with a base
f
true or false H2SO4 sulfuric acid is a common ternary acid
t
true or false HCHO is used as a disinfectant and preservative
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true or false HCHO will coagulate protein substances
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true or false Na2O is an oxide
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true or false a concentrated solution contains a large amount of solute
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true or false a halide contains at least one halogen in a salt compound
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true or false a hypertonic solution will have a higher osmotic pressure than the solution to which it is compared
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true or false a hypotonic solution will have a lower osmotic pressure than the solution to which it is compound
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