Calcium oxide reacts vigorously with water to produce

Asked by admin @ 25/08/2021 in Science viewed by 292 People

5. Calcium oxide reacts vigorously with water to produce slaked lime.

CaO(s) +HO1) + 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)

Answered by admin @ 25/08/2021

Answer:

Explanation:

Quick lime(CaO) combines with water to form calcium hydroxide(Ca(OH) 2

). It is an exothermic reaction as heat is produced in the reaction.

CaO+H 2

O→Ca(OH) 2 +heat

On adding excess of calcium hydroxide in water, a saturated solution of calcium hydroxide is formed which is called lime water. Lime water is basic in nature and therefore has a pH above 7.

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