Deck 2: The Language of Organic Chemistry

Question 1

Which of the following full structural formulae depictions has the condensed structure CH₃CH(OH)CH₃?

A) A
B) B
C) C

Answer 1

B

Question 2

Which of the following skeletal structures represents the condensed structure CH₃CH₂CH₂OH?

A) A
B) B
C) C

Answer 2

A

Question 3

Which of the following compounds is a carboxylic acid?

A) A
B) B
C) C
D) D

Answer 3

B

Question 4

What is the IUPAC name for:

A) 2-methyl-5-isobutylheptane
B) 2,7-dimethyl-4-ethyloctane
C) 2,7-dimethyl-5-ethyloctane
D) 2-methyl-5-(2-methylpropyl)heptane
E) 2,7,7-trimethyl-4-ethylheptane

Question 5

What is the IUPAC name for:

A) 4-methylhex-1-ene
B) 4-ethylpent-1-ene
C) 3-methylhex-5-ene
D) 2-ethylpent-4-ene

Question 6

What is the IUPAC name for:

A) 5-ethylhex-2-yne
B) 2-ethylhex-4-yne
C) 3-methylhept-5-yne
D) 5-methylhept-2-yne

Question 7

Which of the following compounds is named 1-ethyl-2-methylbenzene?

A) A
B) B
C) C
D) D

Question 8

Which of the following molecules contain sp hybridized carbon atoms?

A) A
B) B
C) A and B
D) A and C
E) A, B and C

Question 9

Pick out the diene which has one cis C=C bond and one trans C=C bond:

A) A
B) B
C) C
D) D
E) E

Question 10

How many pi ( $\pi$ -) electrons are there in molecule A?

A) 6
B) 10
C) 12
D) 14
E) None of the other options

Question 11

Which of the following molecules is 5-bromo-4-ethylhex-1-ene?

A) A
B) B
C) C
D) D
E) E

Question 12

Which of the following compounds are alcohols?

A) A and D
B) A and B
C) C and E
D) B
E) D

Question 13

Which of the following classes of compounds A-D are capable of forming hydrogen bonds (in the presence of suitable H-donors/acceptors)?

A) A and B
B) A and C
C) B and D
D) A, B and D
E) All of them

Question 14

Which of the following compounds contain a primary amine?

A) A
B) C and D
C) D
D) E
E) A, B and C

Question 15

Which of the following compounds A-E is a lactone?

A) A
B) B
C) C
D) D
E) E

Question 16

The correct IUPAC name for the following molecule is:

A) 2-methylbutyl butanoate
B) 2-methylbutyl propanoate
C) 2-ethylpropyl butanoate
D) butyl butanoate

Question 17

Which of the following compounds A-E is an anhydride?

A) A
B) B
C) C
D) D
E) E

Question 18

Which of the following is the correct IUPAC name for this molecule:

A) 3-formyl-but-1-ene
B) 3-methylbut-2-enal
C) 2-methylbut-3-enal
D) 2-vinylpropanal
E) None of these

Question 19

The correct IUPAC name for the following molecule is:

A) 1-bromo-2-nitro-3-chlorobenzene
B) 1-bromo-3-chloro-2-nitrobenzene
C) 1-chloro-2-nitro-3-bromobenzene
D) 1-nitro-2-bromo-6-chlorobenzene

Question 20

The correct IUPAC name for the following molecule is:

A) 1-Dimethylamino-2-methoxy-5-hydroxybenzene
B) N,N-dimethyl-2-methoxy-5-hydroxylphenylamine
C) N,N-dimethyl-2-methoxy-5-hydroxylaniline
D) 3-Dimethylamino-4-methoxyphenol
E) O-Methyl 2-dimethylamino-4-hydroxyphenol.

Question 21

Identify the functional group in the following molecule:

A) ester
B) ether
C) aldehyde
D) acetal

Question 22

Which of these cyclic nitrogen-containing molecules is pyrrole?

A) A
B) B
C) C
D) D

Question 23

Identify the sulfur-containing functional group in the following molecule:

A) sulfoxide
B) sulfone
C) sulfonic acid
D) sulfonate ester

Question 24

What is the IUPAC name for this structure?

A) N-methylpentan-3-imine
B) 2,4-dimethylpentan-3-amine
C) N,N-dimethylpentan-3-amine
D) 2,4-dimethylpentan-3-imine

Question 25

Below is the structure of aspirin. What is the IUPAC name for aspirin?

A) 2-acetoxybenzoic acid
B) methyl 5-carboxybenzoate
C) 2-methoxybenzoic acid
D) 5-acetoxybenzoic acid