Question

H-bond is strongest in:

• A. ${{C}_{2}}{{H}_{5}}OH$
• B. $H-F$
• C. ${{H}_{2}}O$
• D. $C{{H}_{3}}COC{{H}_{3}}$

Answer 1

Answer: (B)

$H-F$

Answer 2

All compounds which have hydrogen atom attached to $F,O$ or N atom (i.e., highly electronegative atoms) exhibit H bonding. In the question HF exhibit strongest H bonding because F is most electronegative element.