Question

A solution of a substance X is used for white washing
(1) name the substance X and write formula
(2)write the reaction of the substance X named and above with water

Answer 1

Answer:

1)calcium oxide( CaO)

2) CaO(s). +H20(l)-----Ca(OH)2(aq)+heat

calcium. water. calcium

hydroxide

oxide

Answer 2

Answer:

Ans. i. The substance whose solution is water is used for white washing is calcium oxide. Its formula is CaO.

ii. CaO(s) + H2O(l) Ca(OH)2(aq)