Q.

Aqueous solution of CuSO4 is subjected to electrolysis using copper electrodes. Correct statement about the process is

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a

Hydrogen is liberated at cathode

b

Sulphur dioxide is liberated at anode

c

Copper decomposes at anode

d

Solution becomes alkaline

answer is C.

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Detailed Solution

Attackable electrode is used.At cathode ECu+2/Cuo>EH+/12H2,Pto                  Cu+2+2e−→CuAt anode ECu/Cu+2o>EH2O/O2o              Cu→Cu+2+2e−
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