Calcium hydride on hydrolysis forms? — s Block Elements Chemistry Question

💡 Solution & Explanation

Step 1: Calcium hydride (CaH2, also called hydrolith) is an ionic hydride containing H- ions. Step 2: It undergoes a highly vigorous reaction with water, where the H- ions are oxidized/hydrolyzed to hydrogen gas, and Ca^2+ combines with OH- to form calcium hydroxide. Step 3: The chemical reaction is: CaH2 + 2H2O -> Ca(OH)2 + 2H2. Thus, the products of hydrolysis are Ca(OH)2 and H2, matching option (c).