Question

Calcium oxide reacts vigorously with water to produce slaked lime.

CaO(s) + H₂O(l) → Ca(OH)₂(aq)

This reaction can be classified as:

1. Combination reaction
2. Exothermic reaction
3. Endothermic reaction
4. Oxidation reaction

Which of the following is a correct option?

Options

• (A) and (C)

• (C) and (D)

• (A), (C) and (D)

• (A) and (B)

Answer 1

(A) and (B)

Explanation:

When calcium oxide reacts with water it produces slaked lime and a huge amount of heat is released, this reaction can be classified as a combination reaction. Hence, the correct answer is (A) and (B).