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
