Question

Which of the following pure compounds will exhibit hydrogen bonding?

a.) CH3CH2OH

b.) CH2O

c.) C2H4

d.) C2H2

e.) CH3OCH3

f.) CH3NH2

g.) C3H8

h.) NH3

Answer 1

A, F, H

Step-by-step explanation:

Hydrogen bonding occurs between compounds that make N-H, O-H, and F-H bonds. Just because a compound has a N, O, and F atom in the molecule doesn't mean that the compound will exhibit hydrogen bonding. The N, O, or F must be bonded to a hydrogen. Carbon-hydrogen bonds do not cause hydrogen bonding.

This means that A, F, and H will have hydrogen bonding.

Answer 2

CH3CH2OH

CH3NH2

NH3

Step-by-step explanation:

Hydrogen bonds are formed when hydrogen is bonded to an electronegative atom such as oxygen or nitrogen.

Hydrogen bonds accounts for the solubility of alcohols and amines in water. Similarly, it accounts for the high boiling point of ammonia. All the compounds chosen above exhibit a significant degree of hydrogen bonding.