See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

3 2 2 1 1 2NH N 3H K          … (1)   2 2 2 N O 2NO K    … (2)   3 2 2 2 3 3 3H O 3H O K 2    … (3) Adding (1), (2) and (3)   3 2 2 eq 5 2NH O 2NO 3H O K 2     3 2 3 eq 1 K K K K  