Question

Calcium oxide reacts vigorously with water. Identify the incorrect statements.
a. It is an endothermic reaction.
b. Slaked lime is produced
c. Quick lime is produced.
d. It is an exothermic reaction.

e. It is a combination reaction.​

Answer 1

Answer:

Calcium oxide reacts vigorously with water. Identify the incorrect statements.

a. It is an endothermic reaction. ✓

b. Slaked lime is produced

c. Quick lime is produced.

d. It is an exothermic reaction.

e. It is a combination reaction.

Explanation:

Explanation: Calcium oxide reacts vigorously with water to produce slaked lime , it is an exothermic process because heat is released and it is an example of combination reaction.

Answer 2

Incorrect statements are a. It is an endothermic reaction and c. Quick lime is produced

• Calcium oxide is also known by the name quick lime, which is the reactant in mentioned reaction. Hence, this can not be produced.
• Further, the reaction of calcium oxide with water is accompanied with release of energy, hence it is exothermic reaction.
• Moreover, as calcium oxide and water combine together to form calcium hydroxide, it is a combination reaction.