Question

in one of the industrial process used to manufacture of sodium hydroxide a gas X is formed as a byproduct the gas X reacts with lime water to give a compound y which is used as a bleaching agent in chemical industry identify X and Y giving the chemical equation of reaction involved? ​

Answer 1

One of the industrial process of preparation of sodium hydroxide is Nelson cell process.

Here the by product formed is Chlorine gas.

So, X is Cl2

Cl2 + Ca(OH)2 ----> CaOCl2 + H2O

Here Y is CaOCl2, which is Bleaching powder.

Hope it helps!!