Question

Which among the following group -15 elements forms hydrogen bonding in its hydride compounds?

• A. Sb
• B. P
• C. As
• D. N

Hint:

Hydrogen bonding is most pronounced in compounds where hydrogen is bonded to highly electronegative elements like nitrogen.

Answer 1

The Correct Option is D

Step 1: Understanding the concept of hydrogen bonding.
Hydrogen bonding occurs when a hydrogen atom, which is bonded to a highly electronegative element (such as nitrogen, oxygen, or fluorine), interacts with a lone pair of electrons on another electronegative atom.

Step 2: Analyzing the options.
(A) Sb: Antimony does not form hydrogen bonds in its hydride compounds.
(B) P: Phosphorus also does not form strong hydrogen bonds in its hydride compounds.
(C) As: Arsenic hydrides do not exhibit strong hydrogen bonding.
(D) N: Nitrogen hydrides (like NH₃) form hydrogen bonds due to the high electronegativity of nitrogen and the presence of lone pairs.

Step 3: Conclusion.
The correct answer is (D) N, as nitrogen forms hydrogen bonding in its hydride compounds.