MCAT Organic Chemistry Question — Hydrogen Bonds

Which compound can form hydrogen bonds?

I. R-NH₂

II. R-COOH

III. CH₄

A) I only

B) II only

C) III only

D) I and II

Explanation

Carboxylic acids and amines can H-bond (excluding quaternary amines). Methane (CH₄) cannot H-bond.

a) I only, incorrect.

b) II only, incorrect.

c) III only, incorrect.

d) I and II, correct.

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