See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

(A) Reactivity of group-I metals towards water increases from Li to Cs due to decreasing melting point of metals. (B) 2 3 6Li N 2Li N   (Brown red solid) (C) Fact (D) Solubility of KCl at 100oC = 56 g per 100 g H2O; Solubility of NaCl per 100 g H2O = 38.4 at 100oC