In which of the following, the bond angle is maximum?
NH₃
SCl₂
NH₄⁺
PCl₃
Correct answer: NH₄⁺
Solution
The bond angle is maximum in NH₄⁺ because it has a tetrahedral geometry with bond angles of 109.5°, which is larger than the bond angles in NH₃ (107°), SCl₂ (less than 109.5° due to lone pairs), and PCl₃ (approximately 100°).