NBE Chemistry 1-200
How many carbon atoms are there in a molecule of Benzaldehyde? A. 7 B. 5 C. 6 D. 8
A. 7
Glycerol can be used in embalming formulations as a: A. All of these B. Humectant C. Vehicle D. Solvent
A. All of these
What is the basic unit (parent structure) of all aromatic compounds? A. Benzene B. Formaldehyde C. Benzaldehyde D. Phenol
A. Benzene
Which of the following compounds is formed from the partial oxidation of an aldehyde? A. Carboxylic Acid B. Ammonium Salt C. Ester D. Ketone
A. Carboxylic Acid
What is the freezing point of water? A. O degrees Celsius B. O degrees Fahrenheit C. 32 degrees Celsius D. O degrees Kelvin
A. O degrees Celsius
Decomposition of the human body is: A. a chemical change B. a physical change C. a chemical property D. a physical property
A. a chemical change
Adipocere is chemically most similar to A. a soap B. a protein C. a carbohydrate D. a sugar
A. a soap
Sodium lauryl sulfate is used in embalming fluids as: A. a surfactant B. a vehicle C. a preservative D. a dye
A. a surfactant
Which of the following are commonly used deodorants used in the funeral home: A. all of these B. oil of cloves C. benzadehyde D. oil of sassafras
A. all of these
A substance that can be used as a buffer because it can act as either an acid or a base is considered to be A. amphoteric B. imbibitic C. colloidal D. an emulsifier
A. amphoteric
Sodium citrate, when used in embalming fluids functions as a/an: A. anticoagulant B. wetting agent C. modifying agent D. humectant
A. anticoagulant
Citrates and oxalates are usually added to embalming fluids to act as: A. anticoagulants B. preservatives C. surfactants D. vehicles
A. anticoagulants
Self destruction of the body by its own enzymes: A. autolysis B. dehydration C. liquefaction D. hydrolysis
A. autolysis
Substances that are used to maintain pH balance of solutions: A. buffers B. humectants C. dyes D. surfactants
A. buffers
What is involved in the cremation of the body? A. chemical change B. chemical property C. physical change D. physical property
A. chemical change
Those fluids that are employed at the same time as the preservative chemicals: A. co-injection B. post-injection C. terminal fluids D. pre-injection
A. co-injection
Benzaldehyde, oil of cloves, oil of sassafras and oil of wintergreen are all used in arterial fluids as? A. deodorants B. vehicles C. buffers D. chelating agents
A. deodorants
The intentional removal of water from a compound is properly referred to as: A. desiccation B. distillation C. ionization D. saponification
A. desiccation
Which one of the following is NOT found in a pre-injection fluid? A. high concentration of formaldehyde B. water conditioning agents C. low concentration of formaldehyde D. anticoagulants
A. high concentration of formaldehyde
The function of glycerol in embalming fluids is: A. humectant B. preservative C. anticoagulant D. dehydrent
A. humectant
Which of these describes protein molecules? A. many amino acids linked together B. many fatty acids linked together C. many monosaccharides linked together D. many ketones linked together
A. many amino acids linked together
Anticoagulants, humectants, buffers and surfactants are referred to as ________ when used in arterial formulations? A. modifying agents B. deodorants C. vehicles D. preservatives
A. modifying agents
Paradichlorobenzene is sometimes sprayed in the casket to prevent: A. mold growth. B. odors. C. flies from attacking the body. D. mask the odor of formaldehyde.
A. mold growth.
The swelling of a body during embalming may be due to which one of the following: A. osmosis B. dialysis C. distribution D. surface tension
A. osmosis
Components of embalming solutions used to inactivate the active chemical groups of proteins and amino acids: A. preservatives B. buffers C. humectants D. surfactants
A. preservatives
The products of neutralization are: A. salt and water B. hydrides and phosphates C. metallic salts and non-metallix oxides D. acids and bases
A. salt and water
Which of the following yields both metallic and non-metallic ions in solution? A. salts B. bases C. acids D. ethers
A. salts
In organic chemistry, the best formula for indicating the location of the various substituants in the compound is the: A. structural formula B. empirical formula C. general formula D. line formula
A. structural formula
The chemical used in embalming to reduce surface tension and to aid in penetration, is known as a/an: A. surfactant B. masking agents C. humectant D. buffer
A. surfactant
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. the self digestion of a cell
When ammonia combines with formaldehyde based substances, it forms a neutral compound known as: A. urotropin B. peroxide C. gelatin D. quaternary ammonia aldehyde
A. urotropin
Which of the following is an example of a dialdehyde compound? A. Formaldehyde B. Glutaraldehyde C. Acetaldehyde D. Methanal
B. Glutaraldehyde
What type of substance is embalming fluid? A. an element B. a mixture C. an isotope D. a compound
B. a mixture
Which of the following would NOT normally be present in a cavity fluid? A. coagulants B. active dyes C. germicides D. preservatives
B. active dyes
Substances that can be decomposed or separated into singular substances are: A. elements B. compounds C. ions D. atoms
B. compounds
What substance is changed into adipocere by the saponification process? A. proteins B. fats C. enzymes D. carbohydrates
B. fats
The by-products of the hydrolysis of fats are: A. monosaccharides and water B. fatty acids and glycerol C. amino acids and proteins D. an aldehyde and acid
B. fatty acids and glycerol
In arterial fluids, glycols act as: A. surfactants B. humectants C. buffers D. dyes
B. humectants
Polyhydroxy alcohols are a class of compounds often added to arterial fluids to act as: A. vehicles B. humectants C. surfactants D. buffers
B. humectants
Polymerization of formaldehyde is inhibited by the addition of: A. eosin B. methanol C. water D. borax
B. methanol
The chemical reaction between an acid and base is known as: A. hydrolysis B. neutralization C. oxidation D. synthesis
B. neutralization
Two or more atoms of different elements in chemical combination(acting as a unit) that has lost or gained an electron forms a/n? Example: NH₄+ A. isomer B. radical (polyatomic ion) C. element D. atom
B. radical (polyatomic ion)
Lanolin, an emulsified oil, is used in embalming fluids for which of the following purposes? A. condition the water B. retain moisture C. prevent blood clotting D. buffer the solution
B. retain moisture
A solution containing all the solute it can hold under ordinary conditions is A. concentrated B. saturated C. supersaturated D. dilute
B. saturated
A substance that is capable of bringing about a reduction in the surface tension of a fluid: A. buffer B. surfactant C. preservative D. none of these
B. surfactant
Which of the following are actions of preservative chemicals: 1 - inactive chemical groups of proteins and/or amino acids 2 - inhibit decomposition 3 - inactivate enzymes 4 - kill microorganisms 5 - destroy odors and eliminate their further production A. 3 & 5 only B. 1, 3, 4 & 5 C. 1, 2, 3, 4 & 5 D. 2, 4 and 5 only
C. 1, 2, 3, 4 & 5
Deliquescent compounds such as calcium chloride: 1 - are hygroscopic (they draw water to themselves) 2 - can be used as desiccants in the funeral setting, for example inside caskets to absorb moisture. 3 - are solids, most often salts, but absorb so much moisture that they dissolve in solution, 4 - often undergo sublimation. A. 1 & 2 only. B. 2 & 3 only. C. 1,2 & 3 only. D. 1, 2, 3 & 4
C. 1,2 & 3 only.
Which of the following are used as vehicles in embalming fluids: 1-C₆H₅OH 2 - CH₃OH 3 - H₂O 4 - CH₃CH₂CH₂OH A. 1, 2, 3 & 4 B. 2, 3 & 4 only C. 2 & 3 only D. 1, 2 & 3 only
C. 2 & 3 only
Carbolic acid is useful to embalmers in a surface pack because it: 1 - bleaches tissue 2 - cauterizes tissue 3 - kills most saprophytic bacteria 4 - kills most pathogenic bacteria A. 1, 2 & 4 only. B. 2, 3 & 4 only. C. All of these. D. 2 & 4 only.
C. All of these.
Most often used as fillers: A. Perlite B. None of these C. Both Cellulose and Perlite D. Cellulose
C. Both Cellulose and Perlite
Which of the following names is a synonym for the compound called phenol? A. Boric acid B. Benzoic acid C. Carbolic acid D. Cabonic acid
C. Carbolic acid
Which of the following substances is used as a buffer in arterial fluid? A. Sorbitol B. Heparin C. E.D.T.A. D. Lanolin
C. E.D.T.A.
The substance that an enzyme acts upon is: A. a solution B. a solute C. a substrate D. a solvent
C. a substrate
Borax is used in embalming fluids to: A. preserve tissues B. mask the odor of formaldehyde C. adjust pH D. suin tissues
C. adjust pH
The partial oxidation of a primary alcohol yields: A. an ester B. a ketone C. an aldehyde D. a secondary alcohol
C. an aldehyde
A protein compound that acts as a biological catalyst in chemical reactions is A. an oil B. a hormone C. an enzyme D. a steroid
C. an enzyme
Which of the following statements is FALSE about arterial fluids? Arterial fluids normally: A. are injected into the arterial system. B. contain surfactants. C. are injected into body cavities. D. contain dye.
C. are injected into body cavities.
The digestion of cells by means of their own enzymes is called: A. anabolic metabolism B. cannibalism C. autolysis D. vampirism
C. autolysis
Adipocere is a derivative of: A. blood sugar B. body proteins C. body fats D. body carbohydrates
C. body fats
Water conditioning agents used to sequester calcium ions in hard water: A. sodium citrate B. sodium salt of EDTA C. both sodium citrate and sodium salt of EDTA D. none of these
C. both sodium citrate and sodium salt of EDTA
A solution containing a relatively large amount of solute is A. dilute B. saturated C. concentrated D. supersaturated
C. concentrated
The shrinking of blood cells in a hypertonic salt solution is called A. proteolysis B. hemoptysis C. crenation D. hemolysis
C. crenation
The removal of the amino group from an amino acid is: A. decarboxylation B. imbibition C. deamination D. coagulation
C. deamination
The oxidation of formaldehyde forms A. lactic acid B. acetic acid C. formic acid D. stearic acid
C. formic acid
A substance in embalming fluid which serves to retain moisture in the body is known as: A. desiccant B. surfactant C. humectant D. dehydrant
C. humectant
In arterial fluids, glycols act as: A. buffers B. dyes C. humectants D. surfactants
C. humectants
Water will combine chemically with certain compounds to form crystalline compounds known as: A. esters B. hydroxides C. hydrates D. ketones
C. hydrates
Acidity or alkalinity is conveniently expressed by a scale of: A. % by volume Hydrogen or Hydroxide ions B. % by weight Hydrogen or Hydroxide ions C. pH values D. acid reactant vales
C. pH values
Which of these describes a substance with definite shape and volume? A. matter B. gas C. solid D. liquid
C. solid
Paraformaldehyde is formaldehyde in a: A. isotopic state B. liquid state C. solid state D. gaseous state
C. solid state
A humectant commonly used in embalming fluids is: A. borax B. phenol C. sorbitol D. sodium citrate
C. sorbitol
The type of hardness which could be removed by boiling is A. non-metallic hardness B. binary hardness C. temporary hardness D. permanent hardness
C. temporary hardness
Complete oxidation involves: A. the removal of all oxygen form the carbon B. neutralization of all acids C. the removal of all hydrogen form the carbon D. neutralization of all bases
C. the removal of all hydrogen form the carbon
The most commonly used vehicles in the embalming operation are? A. none of these B. ford and Chevy C. water and alcohol D. formaldehyde and glutaraldehyde
C. water and alcohol
Which of the following chemicals are used as preservatives in arterial formulations? 1 - CHO(CH₂)₃CHO 2 - Sodium salt of EDTA 3 - HCHO 4 - CH₃COCH₃ A. None of these. B. 1, 2, 3 & 4. C. 1, 2 & 3 only. D. 1 & 3 only.
D. 1 & 3 only.
The pH system is so devised that an even balance of H and OH ions would produce a reading of: A. 7.4 B. 14.0 C. 0 D. 7.0
D. 7.0
Which of the following classes of compound is formed by the partial oxidation of a primary alcohol: A. Ketone B. Ester C. Ether D. Aldehyde
D. Aldehyde
Which of the following have been used as vehicles in arterial fluids? A. H₂O B. CH₃OH C. CH₂OHCHOHCH₂OH D. All of these
D. All of these
Which of the following are dyes used in arterial formulations? 1 - Eosin 2 - Ponceau Red 3 - Erythrosin 4 - Amaranth A. 2, 3 & 4 only. B. 1, 2 & 3 only. C. 2 & 4 only. D. All of these.
D. All of these.
Sawdust: A. Alum B. Perlite C. Paraformaldehyde D. Cellulose
D. Cellulose
Which of the following is used only as a filler in autopsy chemical mixtures? A. Paradichlorobenzene B. Lanolin C. Paraformaldehyde D. Perlite
D. Perlite
Proteins are compounds composed of many ________ linked together. A. ketones B. aldoses C. hexoses D. amino acids
D. amino acids
Sodium citrate, when used in embalming fluids, functions as a/an: A. preservative B. vehicle C. humectant D. anticoagulant
D. anticoagulant
Currently, the most often used preservative for embalming purposes is: A. methanal B. formaldehyde C. methanol D. both a and b are correct
D. both a and b are correct
Borax is used in an arterial fluid as a: A. dye B. humectant C. surfactant D. buffer
D. buffer
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. exothermic B. hot C. potential D. endothermic
D. endothermic
Paraformaldehyde is a polymer of: A. acetone B. acetaldehyde C. methanol D. formaldehyde
D. formaldehyde
Which of these compounds is described as a water soluble gas with an irritating pungent odor? A. sodium chlorine B. benzene C. acetone D. formaldehyde
D. formaldehyde
Determined by the total amount of formaldehyde which protein will combine with to be completely preserved: A. dilution requirement B. hazard communication C. phenol coefficient D. formaldehyde demand
D. formaldehyde demand
The type of solution which would result in the shrinking or shriveling of a blood cell is A. hypotonic solution B. saturated solution C. isotonic solution D. hypertonic solution
D. hypertonic solution
Solutions that have the same osmotic pressure are said to be: A. hypoosmotic B. hypotonic C. hypertonic D. isotonic
D. isotonic
Deodorants are used in embalming fluids as: A. humectants B. buffers C. surfactants D. masking agents
D. masking agents
The final hydrolytic products of polysaccharides are: A. disaccharides B. starches C. enzymes D. monosaccharides
D. monosaccharides
Those fluids often used prior to the injection of the preservative chemicals? A. post-injections fluids B. aldehydes C. esters D. pre-injection fluids
D. pre-injection fluids
Embalming prevents the decomposition of A. alkynes B. polysaccharides C. fatty acids D. proteins
D. proteins
The action that formaldehyde has on proteins is: A. can be broken in the presence of a strong oxidizing agent. B. stronger than the powers of decomposition. C. permanent and plastic. D. reversible in the presence of an abundance of water.
D. reversible in the presence of an abundance of water.
Which of these is NOT a property of organic amines? A. they are by-products of the decomposition proteins B. they have a disagreeable odor C. they contain amino acids D. they have a pleasant odor
D. they have a pleasant odor
The important vehicle for an arterial solution is: A. formaldehyde B. glycerol C. lanolin D. water
D. water
The cross linking that takes place between protein molecules in embalmed tissue occurs between ________ in adjacent molecules. A. carbon atoms B. hydrogen atoms C. nitrogen atoms D. oxygen atoms
nitrogen atoms
Phenol is used in embalming fluids as a: A. preservative B. vehicle C. surfactant D. dye
preservative
