In an aqueous solution, `Cu(+1)` salts are unstable because

Options

A. `Cu(+1)` has a `3d^(10)`configuration
B. they disproportionate easily to the `Cu and (+2)` states
C. they disproprtionate easily to the `Cu(+2) and Cu(+3)`states
D. the change in free energy of the overall is zero

Answer

B

Explanation

`Cu^(+)` salts are unstable because `Cu^(+)` salts disproportionate into `Cu and Cu^(2+)` salts.