Question

The bond angles of \( \text{NH}_3 \), \( \text{NH}_2 \), and \( \text{NH}_4^+ \) are?

• A. 107°, 115°, 120°
• B. 90°, 109°, 120°
• C. 104°, 118°, 120°
• D. 120°, 120°, 109°

Hint:

The bond angles in molecules depend on the hybridization and the number of bonding and lone pairs on the central atom.

Answer 1

The Correct Option is A

The bond angles in these molecules are influenced by the electron pair geometry around the central atom. \( \text{NH}_3 \) has a 107° bond angle, \( \text{NH}_2 \) has a slightly larger bond angle, and \( \text{NH}_4^+ \) has a 120° bond angle due to its tetrahedral geometry.