See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

(A)   3 3 SiH N is a weaker base than   3 3 CH N (B) 3 BF is weaker Lewis acid than 3 BI due to back bonding in BF3 (C) Solid 2 5 N O is ionic in nature. It exist as 2 3 NO NO   (D) 3 PH is less basic than 3 NH