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Two platinum electrodes were immersed i...

Two platinum electrodes were immersed in a solution of `CuSO_(4)` and electric current was passed through the solution. After some time, it was found that colour of `CuSO_(4)` disappeared with evolution of gas at the electrode. The colourless solution contains.

A

Plantinum sulphate

B

copper hydroxide

C

copper sulphate

D

sulphuric acid

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The correct Answer is:
D
During electrolysis of `CuSO_(4) , Cu^(2+)` gets discharged at cathode and `OH^(-)` at anode . Thus solution becomes acidic due to excess of `H^(+)` and `SO_(4)^(2-) or H_(2)SO_(4)` .
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