Aqurated copper (I) catin undergoes disproportionation as
`2Cu^(+)(aq) rarr Cu^(2+) (aq) + Cu`, because
A. `Cu^(+)` has `d^(10)` configuration
B. `Cu^(2+)` has `d^(10)` configuration
C. hydration energy of `Cu^(2+)` is higher than that of `Cu^(+)` which compensates second ionisation energy of Cu.
D. size of `Cu^(+) lt Cu^(2+)`
