Calcium oxide reacts vigorously with water to produce slaked lime.$CaO(s) + H_20 (l) \rightarrow Ca(OH)_2(aq)$This reaction can be classified as :(A) Combination reaction (B) Exothermic reaction (C) Endothermic reaction (D) Oxidation reactionWhich of the following is a correct option? (a) (A) and (C) (b) (C) and (D) (c) (A), (C) and (D) (d) (A) and (B)

Correct Answer: (d) (A) and (B)

Explanation: $CaO(s) + H_20 (l) \rightarrow Ca(OH)_2(aq)$

The above reaction is a combination reaction as calcium oxide combines with water to form calcium hydroxide. It is an exothermic reaction as heat is released during this reaction.