Question 1

Which of the following statements best describes constitutional isomers?

Accepted Answer

They have the same molecular formula but different connectivity of atoms.

Question 2

Which of the following is the correct IUPAC name for the compound with the structure $$\mathrm{CH_3CH_2CH(CH_3$)CH_2CH_3}$$?

Accepted Answer

3-methylpentane

Question 3

Which of the following compounds is a secondary alcohol?

Accepted Answer

$$\mathrm{CH_3CH(OH)CH_3$}$$

Question 4

What is the correct systematic name for the following compound: $$\mathrm{CH_3CH_2CH_2Br}$$?

Accepted Answer

1-bromopropane

Question 5

Which of the following statements about boiling points is correct?

Accepted Answer

Branching in alkanes lowers the boiling point compared to their straight-chain isomers.

Question 6

Which of the following is the most stable conformer of butane?

Accepted Answer

The anti-staggered conformer

Question 7

Which of the following best explains why cyclopropane is highly strained?

Accepted Answer

It has significant angle strain and all hydrogens are eclipsed.

Question 8

Which of the following is the correct IUPAC name for the compound shown below?

$$\mathrm{CH_3CH_2OCH_2CH_3}$$

Accepted Answer

ethoxyethane

Question 9

Which of the following statements about hydrogen bonding is true?

Accepted Answer

Primary amines can form stronger hydrogen bonds than tertiary amines.

Question 10

Which of the following is the correct systematic name for the compound with the structure $$\mathrm{CH_3CH_2CH_2NH_2}$$?

Accepted Answer

propan-1-amine

Question 11

Which of the following is a tertiary alkyl halide?

Accepted Answer

$$\mathrm{(CH_3$)_3CBr}$$

Question 12

Which of the following compounds is most soluble in water?

Accepted Answer

$$\mathrm{CH_3CH_2OH}$$

Question 13

Which of the following is the correct IUPAC name for the compound with the structure $$\mathrm{CH_3CH_2CH_2OCH_3}$$?

Accepted Answer

methoxypropane

Question 14

Which of the following statements about cyclohexane conformers is correct?

Accepted Answer

The chair conformer is more stable than the boat conformer.

Question 15

Which of the following is the correct IUPAC name for the compound with the structure $$\mathrm{CH_3CH_2CH_2CH_2OH}$$?

Accepted Answer

butan-1-ol

Question 16

Which of the following is a correct statement about the solubility of organic compounds?

Accepted Answer

Polar compounds are more soluble in polar solvents due to 'like dissolves like'.

Question 17

Which of the following is the correct systematic name for the compound with the structure $$\mathrm{CH_3CH_2CH_2CH_2Cl}$$?

Accepted Answer

1-chlorobutane

Question 18

Which of the following is a correct statement about the stability of cyclohexane chair conformers with substituents?

Accepted Answer

A substituent is more stable in the equatorial position than in the axial position.

Question 19

Which of the following is the correct IUPAC name for the compound with the structure $$\mathrm{CH_3CH_2CH_2CH_2NH_2}$$?

Accepted Answer

butan-1-amine

Nomenclature, Physical Properties, and Rotation About Single Bonds in Organic Compounds

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