In the electrolysis of aqueous solutoin of copper suphate using copper stirps as anode and cathode the anode rection is

Options

A. `Cu^(2+)+2e^(-)rarrCu`
B. `CurarrCu^(2+)+2e^(-)`
C. `2HO^(-)rarrH_(2)+1//2O_(2)+2e^(-)`
D. `2HSO_(4)^(-)rarrH_(2)S_(2)O_(8)+2e^(-)`

Answer

b

Explanation

At anode oxidation occur the possible reaction which may occur at anode are
`Cu(s)rarrCu^(2)+2E^(-)+2E^(-), E^(@)=-0.80 v`
`2H_(2)O(l)rarrO_(2)(g)+4H^(+)(aq)+4E^(-),E^(2)=-1.23` V
since oxidation potential of Cu is higher than that of `H_(2)O` melecules thus option (b) is correct