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Which of the reactions occurs at anode when electrolysis of  CuSO4 solution is done using platinum electrodes?

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a
CuCu2++2e
b
2SO42+2H2OH2SO4+O2+4e
c
2CuCu22++2e
d
2H2OO2+4H++4e

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detailed solution

Correct option is D

Water is oxidized in preference to SO42 , Cu  metal is not available as anode is made of platinum.

Electrolysis is the technique of causing a chemical change in a material by passing an electric current through it. The material either loses or gets an electron during the chemical transition (oxidation or reduction).

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