What will happen during the electrolysis of aqueous solution of CuSO4 in the presence of Cu electrodes?

a.  Copper will deposit at cathode

b.  Copperwill dissolve at anode

c.  Oxygen will be released at anode

d.  Copper will deposit at anode

The correct choice among the given is -


1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Electrolyte ot CuSO4 can be represented by two half cell reactions these occurring at cathode and anode respectively as
 
 
At Cathode                Cu2++2e-Cus
 
At Anode                   CusCu2++2e-
 
Here, Cu will deposit at cathode while copper will dissolved at anode.
 
Hence, options (a) and (b) are the correct choices.