Question

$HCl$ is gas but $HF$ is a low boiling liquid. This is because

• A. $H-F$ bond is strong
• B. $H-F$ bond is weak
• C. Molecules aggregate because of hydrogen bonding
• D. $HF$ is a weak acid

Answer 1

Answer: (C)

Molecules aggregate because of hydrogen bonding

H-F is a liquid at room temperature while HCl is a gas. This is due to extensive H-bonding in H-F which increases its boiling point.

therefore, option C is acorrect answer.