Question

A solution of a substance X is used for white washing. 1) name the substance X and write its formula. 2)write the rea tion of this substance X named on above with water

Answer 1

the substance is calcium and its reaction with water is CA(OH) 2

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)