See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

4 10 3 3 2 5 P O 4HNO 4HPO 2N O      3 2 2 2 Pb NO 4NO 2PbO O       2 4 2 4 2 4 4 2 3 2NaNO 2FeSO 3H SO Fe SO 2NaHSO 2H O 2NO       4 3 2 2 NH NO N O 2H O   