Question

Among $NH_{3},H_{2}O,HF$and $H_{2}S$which would have highest magnitude of hydrogen bonding?

• A. HF due to maximum polarity.
• B. $H_{2}O$due to lone pairs of electrons.
• C. $NH_{3}$due to small size of nitrogen
• D. $H_{2}S$due to higher electron affinity of sulphur.

Answer 1

Answer: (A)

HF due to maximum polarity.

Answer 2

: Since H – F bond has maximum polarity due to most electronegative nature of fluorine, hydrogen bonding is maximum in HF molecules.