Question

if one of the industrial process used for manufacture sodium hydroxide a gas X is formed as by product. The gas X reacts with lime water to give compound y which is used as a bleaching agent. X and y identify

Answer 1

x-chlorine
y-calcium oxichloride (caocl2).

Answer 2

Here's your answer buddy--
Industrial process for manufacturing NaOH is electrolysis of aqueous solution of NaCl .eq.is--
NaCl +H2O----NaOH+ Cl2+H2

and Cl2 is used in making bleaching powder as follows--
Ca(OH)2 +Cl2----CaOCL2 +H2O

therefore X is Chlorine
Y is Calcium oxichloride or bleaching powder.

If this helps mark it brainleist bro...!