Question

solution of a substance is used for whitewashing
(I)Name the substance and write its formula
(ii)Write the reaction of the substance X named in
above with​

Answer 1

Answer: The substance whose solution in water is used for white washing is calcium oxide

or quick lime. Its formula Cao.

ii.Cao + H2O → Ca(OH)2

Answer 2

Answer:  1) calcium hydroxide, 2)CaO + H^2O= Ca(OH)^2, It is a combination reaction