Q. 11

What are the thre

Answer :

When electricity is passes through a concentrated solution of sodium chloride (called brine), it decomposes to form sodium hydroxide, chlorine and hydrogen gas.


(i) Use of Sodium hydroxide (NaOH). It is used for making soaps and detergents.


(ii) Use of chlorine (Cl2). It is used in the production of bleaching powder.


(iii) Use of hydrogen gas (H2). It is used to make ammonia for fertilisers: used as a fuel or margarine.


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