Question 1

Which of the following functional groups is capable of acting as both a hydrogen bond donor and acceptor?

Accepted Answer

Amide

Question 2

Which intermolecular force is primarily responsible for the high boiling point of water ($H_2O$)?

Accepted Answer

Hydrogen bonding

Question 3

Which bond is the most polar among the following?

Accepted Answer

$O-H$

Question 4

A molecule contains a carbonyl group ($C=O$) and an $NH_2$ group attached to the same carbon. What is the functional group called?

Accepted Answer

Amide

Question 5

Which of the following solvents is best for dissolving ionic compounds due to its ability to donate hydrogen bonds?

Accepted Answer

Methanol

Question 6

Which functional group is NOT present in the drug Aubagio?

Accepted Answer

Amine

Question 7

Which of the following molecules would have the strongest van der Waals (London dispersion) forces?

Accepted Answer

Hexane ($C_6H_{14}$)

Question 8

Which statement best explains why esters generally have lower boiling points than carboxylic acids?

Accepted Answer

Esters cannot form hydrogen bonds as donors.

Question 9

Which functional group is characterized by a sulfur atom bonded to a hydrogen atom?

Accepted Answer

Thiol

Question 10

Which of the following molecules can participate in dipole-dipole interactions but not hydrogen bonding?

Accepted Answer

Acetone ($CH_3COCH_3$)

Question 11

Which of the following is a correct description of a primary amine?

Accepted Answer

Nitrogen bonded to one carbon and two hydrogens

Question 12

Which functional group is present in both atorvastatin and rosuvastatin and is crucial for binding to HMG CoA-Reductase?

Accepted Answer

Carboxylic acid

Question 13

Which of the following best describes the effect of increasing molecular size on London dispersion forces?

Accepted Answer

London dispersion forces increase with increasing size.

Question 14

Which of the following functional groups contains a triple bond between carbon and nitrogen?

Accepted Answer

Nitrile

Question 15

Which of the following molecules would be classified as a polar aprotic solvent?

Accepted Answer

Acetone ($CH_3COCH_3$)

Question 16

Which of the following statements about bond dipoles is TRUE?

Accepted Answer

Bond dipoles point towards the more electronegative atom.

Question 17

Which functional group is present in 'dibenzyl sulfide'?

Accepted Answer

Thioether

Question 18

Which of the following is NOT a requirement for hydrogen bonding?

Accepted Answer

Hydrogen bonded to a carbon atom

Question 19

Which of the following functional groups is most likely to increase the solubility of a molecule in water?

Accepted Answer

Carboxylic acid

Question 20

Which of the following statements about intermolecular forces is correct?

Accepted Answer

London dispersion forces are the weakest type of intermolecular force.

Lecture Notes #4

Study Guide - Practice Questions