Question

state what happens when electricity is passed through an aqueous solution of sodium chloride? write balanced chemical equation. what is this process called? mention one important use of each of the products formed.

Answer 1

electrolysis of brine(NaCl):
2NaCl+2H2O==>2NaOH+Cl2+H2
use of naoh- making artificial fibres and papers
use of chlorine- used as a disinfectant and in cleaning swimming pool etc.
use of hydrogen gas- in fuels

Answer 2

Explanation :

When electricity is passed through an aqueous solution of sodium chloride, it gives hydrogen, chlorine and sodium hydroxide as a product.

The balanced chemical equation is,

$2NaCl(aq)+2H_2O(l)\rightarrow H_2(g)+Cl_2(g)+2NaOH(aq)$

This process is called as Electrolysis of Brine.

Use of each product :

Hydrogen : It is used to make ammonia for fertilizers.

Chlorine : It is used as disinfectant.

Sodium hydroxide : It is as an ingredient in drain and oven cleaner.