Question 1

Which of the following best explains why alcohols have higher boiling points than alkanes of similar molecular mass?

Accepted Answer

Alcohols undergo hydrogen bonding.

Question 2

What is the correct IUPAC name for the compound with the structure $CH_3CH_2CH_2OH$?

Accepted Answer

Propanol

Question 3

Which of the following functional groups is present in both thiols and alcohols?

Accepted Answer

A sulfur-containing group

Question 4

Which of the following statements about van der Waals forces is TRUE?

Accepted Answer

They increase with molecular polarizability.

Question 5

A compound with the formula $CH_3CH_2SH$ is best classified as:

Accepted Answer

A thiol

Question 6

Which of the following solvents is both protic and polar?

Accepted Answer

Acetic acid

Question 7

Why do alkyl halides generally have lower boiling points than alkanes of similar molecular mass?

Accepted Answer

They have smaller molecular volumes and less surface area.

Question 8

Which of the following best describes the role of entropy in the hydrophobic effect?

Accepted Answer

Hydrocarbon association increases the entropy of water.

Question 9

Which of the following is the correct IUPAC name for the compound $CH_3CH_2OCH_2CH_3$?

Accepted Answer

Diethyl ether

Question 10

Which of the following is a key requirement for a molecule to participate in hydrogen bonding?

Accepted Answer

It must have a hydrogen atom bonded to N, O, or F.

Question 11

Which of the following best explains why sodium benzoate is more soluble in water than benzoic acid?

Accepted Answer

Sodium benzoate is ionic and interacts strongly with water.

Question 12

Which of the following is the correct classification for the solvent dichloromethane ($CH_2Cl_2$)?

Accepted Answer

Aprotic, polar

Question 13

Which of the following compounds is most likely to be miscible with water?

Accepted Answer

Methanol

Question 14

What is the main driving force for the association of hydrocarbon molecules in water?

Accepted Answer

Increase in entropy of water

Question 15

Which of the following best describes the structure of a phospholipid?

Accepted Answer

A polar head group and a nonpolar tail

Question 16

Which of the following is a correct statement about the solubility of alcohols in water as chain length increases?

Accepted Answer

Solubility decreases with chain length.

Question 17

Which of the following is the correct IUPAC name for $CH_3CH_2CH_2SH$?

Accepted Answer

Propanethiol

Question 18

Which of the following is NOT a type of noncovalent interaction?

Accepted Answer

Ionic bonding

Question 19

Which of the following best describes the effect of symmetry on melting points and solubility?

Accepted Answer

Symmetrical compounds have higher melting points and lower solubility.

Question 20

Which of the following is a correct statement about the role of cell membranes in drug solubility?

Accepted Answer

Drugs must have some solubility in both water and hydrocarbons to pass through the cell membrane.

Chapter 8: Noncovalent Intermolecular Interactions, Nomenclature, and Solubility of Alkyl Halides, Alcohols, Thiols, Ethers, and Sulfides

Study Guide - Practice Questions