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Q.

Molten CuCl2 is electrolysed using platinum electrode. The reaction occurring at anode is

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a

Cu2++2e→Cu(s)
 

b

2Cl→Cl2(g)+2e

c

Cu(s)→Cu2++2e

d

Cl2(g)+2e→2Cl-

answer is A.

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Detailed Solution

  • Copper is deposited at the cathode during electrolysis, whereas oxygen is released at the anode.
  • At the electrodes, the following reactions take place
  • At anode 2Cl→Cl2(g)+2e(Oxidation)
  • At cathode Cu2++2e⟶Cu(s) (Reduction)
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