Deck 21: Organic Chemistry

Question 1

What is the name of the compound whose skeleton structure (hydrogens at end of bonds)is shown below?

A)trans-2-butene
B)cis-2-butene
C)1-butene
D)trans-3-butene
E)cis-3-butene

Answer 1

cis-2-butene

Question 2

Which of the following compounds cannot have cis-trans isomers?
i.H₂C = CCl₂
ii.H₂C = CCH₃Cl
iii.H₃CClC = CCH₃Cl

A)i only
B)ii only
C)iii only
D)both i and ii
E)All have cis-trans isomers

Answer 2

both i and ii

Question 3

What is the IUPAC name of the following molecule?

A)5-methyl-2-hexene
B)2-methyl-4-hexene
C)5-methyl-2-hexyne
D)2-methyl-4-hexyne
E)2-methyl-4,5-hexyne

Answer 3

5-methyl-2-hexyne

Question 4

What is the name of the compound whose carbon skeleton is shown below?

A)dichloromonobromomethyl-2,2,4,6-hexane
B)4-bromo-2,2-dichloro-6-methylhexane
C)3-bromo-5,5-dichloro-1-methylhexane
D)4-bromo-6,6-dichloroheptane
E)4-bromo-2,2-dichloroheptane

Question 5

What is the name of CH₃CH₂CH₂CH₂CH₃?

A)pentrane
B)qunitane
C)pentacarbonduodecahydrogen
D)butane
E)pentane

Question 6

Complete the following equation: C₃H₆ + Br₂ →

A)C₃H₅Br + HBr
B)C₃H₆Br₂
C)C₃H₄Br₂ + 2 HBr
D)C₃H₆Br + Br
E)C₃H₆ does not react with bromine.

Question 7

What is the name of the compound whose structural diagram is shown below?

A)sq-butane
B)neobutane
C)cyclobutane
D)n-butane
E)isobutane

Question 8

What is the name of the following molecule?

A)1,4-dichlorohexatriene
B)1,4-dichlorocyclohexane
C)1,4-dichlorocyclohexene
D)p-dichlorobenzene
E)m-dichlorobenzene

Question 9

Consider the following basic structure. This structure is characteristic of all the carbon atoms found in which of the following classifications of hydrocarbons?

A)alkanes
B)cycloalkanes
C)alkenes
D)alkynes
E)both a and b

Question 10

A unknown hydrocarbon undergoes the following general reaction. Which type of compound might X be?

A)alkane
B)cycloalkane
C)alkene
D)aromatic hydrocarbon
E)Any of the above is a possibility.

Question 11

Match each molecule below with its correct classification:

Question 12

What is the IUPAC name of the molecule whose carbon skeleton is shown below?

A)nonane
B)2,3-dimethylheptane
C)1-ethyl-3,4-dimethylpentane
D)5-ethyl-2,3-dimethylpentane
E)2,3-dimethyl-5-ethylpentane

Question 13

A certain compound is a gas at room temperature and undergoes only substitution reactions.Which of the following is most likely to be this compound?

A)C₄H₁₀
B)C₆H₁₀
C)C₇H₁₄
D)C₉H₁₈
E)Any of is a possibility

Question 14

What is the name of the following molecule:

A)1-chlorohexatriene
B)1-chlorocyclohexane
C)chlorocyclohexane
D)chlorocyclohexene
E)chlorobenzene

Question 15

What are the IUPAC and common names for the alkene with the molecular formula C₂H₄?
IUPAC name Common name

A)acetylene ethyne
B)ethyne acetylene
C)ethylene ethene
D)ethene ethylene
E)ethyne ethene

Question 16

Which of the following compounds is/are not classified as hydrocarbons?
i.C₁₀H₂₂
ii.CH₃CH₂CH₂CH₃
iii.CH₃CH₂OH
iv.CH₂O

A)i and ii
B)iii and iv
C)ii, iii, and iv
D)All are hydrocarbons
E)None is a hydrocarbon

Question 17

Consider the following structure.The central atom is carbon and the outer atoms are hydrogen. If one of the outer atoms was removed,the resulting structure would have which of the following names?

A)methane
B)methyl
C)cyclomethyl
D)ethyl
E)ethane

Question 18

Which of the following would be classified as organic?
i.HCOOH
ii.CO₃^2-
iii.CN^-
iv.CH₄
v.CH₃OH

A)ii and iii
B)iv and v
C)i, iv, and v
D)i, ii, and iii
E)All are organic substances.

Question 19

What is the product of the hydrogenation of trans-2-pentene?

A)isopentane
B)neopentane
C)cis-2-pentane
D)trans-2-pentane
E)n-pentane

Question 20

Which of the following compounds are classified as alkenes? Assume that none of the compounds listed is a cycloalkane.
i.C₅H₁₀
ii.C₇H₁₆
iii.C₄H₈
iv.C₁₀H₂₂
v.CH₄

A)i and iii
B)ii and iv
C)ii, iv, and v
D)iii, iv, and v
E)All are alkenes

Question 21

Which of the following compounds is/are (a)carboxylic acid(s)?
i.CH₃-COOH
ii.CH₃-COO-CH₃
iii.CH₃-OH
iv.CH₃-O-CH₃
v.CH₃-NH₂

A)i only
B)ii only
C)iv only
D)i, ii, and iii
E)i, iii, and v

Question 22

Which of the following compounds is/are (an)amine(s)?
i.CH₃-NH₂
ii.(CH₃)₂-NH
iii.(CH₃)₃-N
iv.CH₃-CO-NH₂
v.CH₃(CH₂)₂-CO-NH₂

A)i only
B)iv only
C)iv and v
D)i, ii, and iii
E)All are amines

Question 23

Which of the following alcohols is most soluble in water?

A)CH₃CH₂OH
B)CH₃(CH₂)₃OH
C)CH₃(CH₂)₅OH
D)CH₃(CH₂)₇OH
E)CH₃(CH₂)₉OH

Question 24

Which of the following compounds is/are (an)ester(s)?
i.CH₃-COOH
ii.CH₃-COO-CH₃
iii.CH₃-OH
iv.CH₃-O-CH₃
v.CH₃-NH₂

A)i only
B)ii only
C)iv only
D)i, ii, and iii
E)i, iii, and v

Question 25

Which of the following compounds is/are (a)ketone(s)?
i.CH₃-OH
ii.CH₃-CO-CH₃
iii.CH₃-O-CH₃
iv.CH₃-CHO
v.CH₃-COO-CH₃

A)ii only
B)ii, iii, and v
C)ii, iii, iv, and v
D)i, ii, iii, and iv
E)All are ketones

Question 26

Which of the following is the best classification for the molecule shown below?

A)Primary amine
B)Secondary amine
C)Tertiary amine
D)Amino acid
E)Protein

Question 27

Which of the following compounds is/are (an)ether(s)?
i.CH₃-CO-CH₃
ii.CH₃CH₂-OH
iii.C₂H₅-O-C₂H₅
iv.CH₃(CH₂)₅-OH
v.CH₃-CH₃

A)i only
B)ii only
C)iii only
D)ii and iv
E)i, ii, iii, and iv

Question 28

What is the name of the following?

A)ethyl formanate
B)dimethyl ether
C)dimethyl ester
D)methyl acetate
E)propanoic acid

Question 29

What is the IUPAC name of the following molecule:
CH₃CH₂-O-CH₂CH₃

A)2-oxybutanether
B)ethyl ethanoate
C)diethyl butanoate
D)diethyl alcohol
E)diethyl ether

Question 30

What is the IUPAC name of the following molecule:

A)3-butanol
B)2-butanol
C)1-methyl-1-propanol
D)3-methyl-3-propanol
E)isobutyl alcohol

Question 31

What is the name of the following?

A)dihydrogennitromethyl
B)formanamide
C)methylamine
D)primaryamine
E)methyl ammonia

Question 32

What is the name of the reaction between an acid and an alcohol?

A)Protonization
B)Isomerization
C)Acidification
D)Oxidation
E)Esterification

Question 33

What are the reactants in the commercial preparation of acetaldehyde,CH₃CHO?

A)A secondary alcohol and oxygen
B)A primary alcohol and oxygen
C)An aldehyde and oxygen
D)Acetylene and water
E)A ketone and hydrogen

Question 34

What is the product of the reaction between benzene and Cl₂,with FeCl₃ as a catalyst?

A)chlorobenzene + HCl
B)dichlorohexane
C)chlorohexane + HCl
D)dichlorohexene
E)dichlorohexene + HCl

Question 35

Which of the following compounds is/are (an)aldehyde(s)?
i.CH₃-OH
ii.CH₃-CO-CH₃
iii.CH₃-O-CH₃
iv.CH₃-CHO
v.CH₃-COO-CH₃

A)ii only
B)iii only
C)iv only
D)i and iv
E)ii, iii, and v

Question 36

What is the name of the following?

A)methanone
B)methyl carbonyl
C)acetone
D)formaldehyde
E)acetaldehyde

Question 37

Which of the following compounds is/are (an)amide(s)?
i.CH₃-NH₂
ii.(CH₃)₂-NH
iii.(CH₃)₃-N
iv.CH₃-CO-NH₂
v.CH₃(CH₂)₂-CO-NH₂

A)i only
B)iv only
C)iv and v
D)i, ii, and iii
E)All are amides

Question 38

Which of the following is the product of the dehydration reaction (140°C,continuous addition of ethanol)of two molecules of ethanol? One water molecule and one molecule of...

A)methyl ethyl ketone
B)methyl acetate
C)butane
D)butene (butylene)
E)diethyl ether

Question 39

What are the products of the reaction between acetic acid and ammonia?

A)Ammonium acetate and hydrogen
B)Methylamine and methanoic acid
C)Nitroacetic acid and hydrogen
D)Dimethylamine and water
E)Acetamide and water

Question 40

Which of the following compounds are alcohols?
i.CH₃-CO-CH₃
ii.CH₃CH₂-OH
iii.C₂H₅-O-C₂H₅
iv.CH₃(CH₂)₅-OH
v.CH₃-CH₃

A)i and iii
B)ii and iv
C)i, ii, and iii
D)i, ii, iii, and iv
E)All are alcohols

Question 41

What functional group is necessarily present in the monomers from which chain-growth polymers are formed?

A)Carboxylic acid
B)Ether
C)Ketone
D)Alkene
E)Alcohol

Question 42

What types of reactants are necessary to form a polymer chain by repeated condensation reactions?

A)A carboxylic acid and an ether
B)A carboxylic acid and an ester
C)A ketone and an ether
D)A ketone and an ester
E)A dicarboxylic acid and a dialcohol

Question 43

Which of the following is the best definition of the term polymer?

A)A molecule consisting of two or more mer functional groups
B)A chemical compound formed by bonding two or more monomers
C)A chemical compound formed from the reaction of two or more alkanes
D)A molecule that has a regularly repeating double bonded carbon group
E)A molecule that has a regularly repeating benzene bonded to the main carbon chain

Question 44

Which of the following statements is/are incorrect?
i.Nylon is an example of a step-growth polymer
ii.The most effective way of making a polymer with mechanical strength is to use a dialcohol that gives linear chains
iii.A cross-linked polyester will have high mechanical strength

A)i only
B)ii only
C)iii only
D)i and ii
E)i and iii

Question 45

Consider the segment of a polymer shown below. Which of the following correctly describes the reaction producing this polymer?

A)The reaction involves condensation.
B)The product is a copolymer.
C)The monomer is a halogenated alkene.
D)The reaction occurs by a step-growth mechanism.
E)All of these correctly characterize the reaction.