Organic Chemistry

What is the IUPAC name for CH3 - CH2 - CH2 - SH? a) 1-propanethiol b) 2-propanethiol c) 1-butanethiol d) 2-butanethiol e) propyl thiol

a) 1-propanethiol

The hydrogenation of an alkene gives a(n) a) alkane b) alkene c) alkyne d) benzene e) isomer

a) alkane

Which one of the following compounds has the smallest number of hydrogen atoms? a) butyne b) 2-methylpropane c) butene d) 2 methylcyclopropane e) butane

a) butyne

Achiral compounds are those which a) have no "handedness" b) have different mirror images c) are non-superimposable d) have the same formula but different structures e) are a racemic mixture

a) have no "handedness"

Which of the following is NOT typical of most organic compounds? a) high melting point b) poor solubility in water c) low boiling point d) covalent bonding e) high flammability

a) high melting point

What relation does the boiling point of an amine have to a similar hypo carbon? a) higher b) lower c) very similar

a) higher

The splitting apart of an ester in the presence of a strong acid and water is called a) hydrolysis b) saponification c) neutralization d) esterification e) reduction

a) hydrolysis

What is the name for a one-carbon alkyl substituent? a) methyl b) ethyl c) propyl d) butyl e) pentyl

a) methyl

The oxygen atom in an carbonyl group is ___ the carbon atom a) more electronegative than b) less electronegative than c) identical in electronegativity to d) more electropositive than e) more soluble than

a) more electronegative than

The name given to an aqueous solution of HNO3 is a) nitric acid b) nitrous acid c) hydrogen nitrate d) hydronitrogen acid e) hyponitric acid

a) nitric acid

The functional group contain in the compound CH3CH2SH is a(n) a) thiol b) carboxylic acid c) amine d) ester e) amide

a) thiol

How many carbonyl-containing isomers does the formula C3H6O have? a) two b) three c) five d) seven e) eight

a) two

Organic compounds with double or triple bonds are classified as a) unsaturated compounds b) saturated compounds c) dilate solutions d) concentrated solutions e) substituted compounds

a) unsaturated compounds

Which of the following names are correct? a) 4-bromo-2-ethylbenzene b) 1-chloro-3-propylbenzene c) 3-bromo-4-chlorobenzene d) 2,2-dibromobenzene e) 4-fluoro-2-iodobenzene

b) 1-chloro-3-propylbenzene

How many moles of H2O are produced when 1 mole of Mg(OH)2 reacts with 1 mole of H2SO4? a) 1 b) 2 c) 3 d) 4 e) 5

b) 2

Which of the following names are correct? a) 3-butyl-4-pentene b) 3-ethyl-1-heptene c) 3-etheneheptane d) 5-ethyl-6-heptene e) All of the above

b) 3-ethyl-1-heptene

What is the molecular formula of benzene? a) C6H4 b) C6H6 c) C6H8 d) C6H10 e) C6H12

b) C6H6

Which of the following is a neutralization reaction? a) KCl + NaNO3 -> KNO3 + NaCl b) HNO3 + KOH -> H2O + KNO3 c) H2O + SO3 -> H2SO4 d) 4Na + O2 -> 2Na2O e) 2NO2 -> 2NO + O2

b) HNO3 + KOH -> H2O + KNO3

The dehydration of an alcohol in the presence of a strong acid yields a) an alkane b) an alkene c) a ketone d) an alcohol e) an aldehyde

b) an alkene

Aminobenzene is known as a) toluene b) aniline c) amidine d) histidine e) phenylamine

b) aniline

What is the common name of the ether that is a structural isomer of 1-butanol? a) isopropyl ether b) diethyl ether c) dimethyl ether d) ethyl methyl ether e) butyl ether

b) diethyl ether

The name given to an aqueous solution of HBr is a) hydrogen bromide b) hydrobromic acid c) bromic acid d) bromous acid e) hypobromous acid

b) hydrobromic acid

The common name for 2-butanone, a readily available solvent, is a) methyl acetone b) methyl ethyl ketone or MEK c) b-butanone d) butyl ketone e) butyl ether

b) methyl ethyl ketone or MEK

A solution with a pH of 4 is a) extremely acidic b) moderately acidic c) neutral d) slightly basic e) extremely basic

b) moderately acidic

In a sulfuric acid solution, where the [H3O+] is 0.01 M, what is the pH? a) pH = 12.0 b) pH = 2.0 c) pH = 3.0 d) pH = 11.0 e) pH = 5.0

b) pH = 2.0

Tertiary alcohols cannot be oxidized because a) there are no oxygen atoms to remove from the alcohol carbon b) there are no hydrogen atoms attached to the alcohol carbon c) the alcohol carbon is bonded to four groups so no oxygen can be added to it d) the alcohol carbon is bonded to four groups so no hydrogen can be added to it e) the alcohol carbon is too electronegative to have hydrogen removed from it

b) there are no hydrogen atoms attached to the alcohol carbon

Which of the following would not be water soluble? a) acetone b) propanal c) 3- heptanone d) formaldehyde e) 2-butanone

c) 3- heptanone

The carbonyl group consists of a) a carbon-oxygen-hydrogen structure. b) a carbon-oxygen single bond. c) a carbon-oxygen double bond. d) a carbon-oxygen triple bond. e) a carbon-oxygen-carbon structure.

c) a carbon-oxygen double bond.

Isomers are molecules that share the same formula and have a) a different shape to the molecule b) the same arrangement of atoms within the molecule c) a different arrangement of atoms within the molecule d) identical boiling points e) the same shape in each molecule

c) a different arrangement of atoms within the molecule

How do sugars form cyclic hemiacetals? a) 2 molecules of a sugar react with one another b) a molecule of sugar reacts with an added alcohol c) a molecule of sugar reacts with itself d) a molecule of sugar reacts with an added aldehyde e) a sugar molecule decomposes

c) a molecule of sugar reacts with itself

Which of the following is found in vinegar? a) nitric acid b) formic acid c) acetic acid d) propionic acid e) butyric acid

c) acetic acid

In the IUPAC naming system, an aldehyde is named by replacing the -e of the name of the corresponding alkane with a) yne b) ene c) al d) one e) ol

c) al

Benedict's test requires an aldehyde and an adjacent a) saturated carbon b) ketone c) alcohol d) phenyl ring e) acid

c) alcohol

Identify the functional group in the compound CH3CH2N(CH3)2 a) amide b) alcohol c) amine d) ether e) ketone

c) amine

In the three-dimmensional structure of methane, CH4, the hydrogen atoms attached to a carbon atom are aligned a) in a straight line b) at the corners of a square c) at the corners of a tetrahedron d) at the corners of a rectangle e) at the corners of a cube

c) at the corners of a tetrahedron

Alcohols contain which functional group? a) amine b) amide c) hydroxyl d) thiol

c) hydroxyl

What kind of pharmacologic activity is found in the amines Procaine® and Lidocaine®? a) stimulant b) anasthetic c) local anasthetic d) disinfectant e) fungicide

c) local anasthetic

When chlorine atoms are attached to carbon 1 and carbon 3 in benzene, the compound is named a) dichlorobenzene. b) o-dichlorobenzene. c) m-dichlorobenzene d) p-dichlorobenzene. e) j-dichlorobenzene.

c) m-dichlorobenzene

The structural formula of benzene is often represented as a a) ring of 5 carbon atoms b) ring of 6 carbon atoms with 6 double bonds c) ring of 6 carbon atoms with a circle in the center d) cycloalkane e) cycloalkyne

c) ring of 6 carbon atoms with a circle in the center

What classification of alcohol undergoes oxidation to yield a ketone? a) primary alcohol b) both primary and secondary alcohols c) secondary alcohol d) all classes of alcohols e) both secondary and tertiary alcohols

c) secondary alcohol

The simplest cycloalkane has a) one carbon atoms b) two carbon atoms c) three carbon atoms d) four carbon atoms e) five carbon atoms

c) three carbon atoms

How many valence electron does carbon have? a) 1 b) 2 c) 3 d) 4 e) 5

d) 4

The ketone with the constitutional formula C5H10O can also be written as a) CH3CH2CH2COCH3. b) CH3COCH2CH2CH3. c) CH3CH2COCH2CH3. d) All of these e) None of these

d) All of these

What is the condensed structural formula of the compound propene? a) CH3CH2CH3 b) H3C = CH2CH3 c) H2C = C = CH2 d) CH3CH = CH2 e) HC CCH3

d) CH3CH = CH2

Aldehydes and ketones may be reduced to a) acids b) alkanes c) ethers d) alcohols e) esters

d) alcohols

An unsaturated compound always a) is a cycloalkane. b) contains a double bond. c) contains a triple bond. d) contains at least one double or triple bond. e) is aromatic

d) contains at least one double or triple bond.

What is the name for a nine-carbon continuous-chain alkane? a) hexane b) heptane c) octane d) nonane e) decane

d) nonane

In the IUPAC naming system, a ketone is named by replacing the -e in the corresponding alkane name with a) yne b) ene c) al d) one e) ol

d) one

When bromine atoms are attached to carbon 1 and carbon 4 in benzene, the compound is named a) dibromobenzene b) o-dibromobenzene c) m-dibromobenzene d) p-dibromobenzene e) f-dibromobenzene

d) p-dibromobenzene

When bromine atoms are attached to carbon 1 and carbon 4 in benzene, the compound is named a) dibromobenzene b) o-dibromobenzene. c) m-dibromobenzene. d) p-dibromobenzene. e) f-dibromobenzene.

d) p-dibromobenzene.

Thiols are strong smelling compounds responsible for a) fruity odors b) sharp odors c) flowery odors d) skunky or bad smelling odors e) salty odors

d) skunky or bad smelling odors

When naming an alkene, the parent chain is the longest carbon chain a) that does not contain the double bond. b) regardless of whether or not it contains the double bond. c) that contains at least one of the carbon atoms of the double bond. d) that contains both atoms of the double bond. e) that contains a branch

d) that contains both atoms of the double bond.

Ethers can be formed from the reaction of a) water and an alkane b) water and an alcohol c) two alkenes d) two alcohol e) a ketone and an alkene

d) two alcohols

A 10.0 mL of 0.121 M H2SO4 is neutralized by 17.1 mL of KOH solution. The molarity of the KOH solution is a) 0.207 M b) 0.4141 M c) 0.0708 M d) 0.428 M e) 0.142 M

e) 0.142 M

What is the [H3O+] in a solution with [OH-] = 1 x 10^-12 M? a) 1 x 10^12 M b) 1 x 10^2 M c) 1 x 10^7 M d) 1 x 10^-8 M e) 1 x 10^-2 M

e) 1 x 10^-2 M

In the equation for the combustion of pentane, the coefficient of carbon dioxide is a) 1 b) 2 c) 3 d) 4 e) 5

e) 5

What is the pH of a solution with [H3O+] = 1 x 10-9 M? a) 1.0 x 10^-5 M b) -9.0 c) 5.0 d) -5.0 e) 9.0

e) 9.0

1,2-ethanediol (ethylene diol) has uses that include a) antifreeze b) solvent for paint. c) production of synthetic fibers. d) solvent for ink e) All of these

e) All of these

Which molecule below has stereoisomers with different biological effects? a) carvone b) nicotine c) LSD d) epinephrine e) All of these

e) All of these

Which of the following is the strongest acid? a) H3PO4 b) NH4+ c) NAOH d) H2CO3 e) HCl

e) HCl

In a neutralization reaction a) two acids react to form water. b) water and a salt react to form an acid and a base. c) an acid and a salt react to form water and a base. d) a base and a salt react to form water and an acid. e) an acid and a base react to form a salt and water.

e) an acid and a base react to form a salt and water.

What is the name for a five-carbon continuos chain alkane? a) methane b) ethane c) propane d) butane e) pentane

e) pentane

A thiol is a functional group containing a) carbon b) chlorine c) oxygen d) nitrogen e) sulfur

e) sulfur