Question

In one of the industrial processes for manufacture of sodium hydroxide, a gas X is formed as by-product.

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 the reactions involved​

Answer 1

Answer:

X is chlorine and Y is bleaching powder.

Explanation:

When electricity is passed in aqueous solution of sodium chloride ( brine) , Sodium hydroxide is formed along with gases like chlorine and hydrogen. When chlorine reacts with calcium hydroxide (lime water) , bleaching powder(CaOCl2) is formed.

2 NaCl +2H20 - (electricity) 2NaOH + Cl2 +H2