Question

what is Chlora- alkali process ?give it reaction

Answer 1

The chloralkali process (also chlor-alkaliand chlor alkali) is an industrial processfor the electrolysis of sodium chloride. It is the technology used to produce chlorine and sodium hydroxide 

Answer 2

meaning of cholralkali
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Either of the products (sodium hydroxide and chlorine) of the industrial electrolysis of sodium chloride.

now come to the preparation:-
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NaOH:-(sodium hydroxide)

it is prepared by chlor -alkali process , this process is known as chlor-allali because it's products is chlorine and base

2NaCL+2H2O( when they electrolysis)→2NaOH(base)+CL2(anode)+H2 (cathode)

hope it will help you. .♥♥♥