The electronic configurationo of Cu(II) is `3d^(9)` whereas that of Cu(I) is `3d^(10)`. Which of the following is correct ?

Options

A. Cu (II) is more stable
B. Cu(II) is less stable
C. Cu(I) and Cu(II) are equally stable.
D. Stability of Cu(I) and Cu(II) depends on nature of copper salts.

Answer

a

Explanation

Though Cu(I) has `3d^(10)` stable configuration while Cu(II) has `3d^(9)` configuration , yet Cu(II) is more stable due to greater effective nuclear energy charge of Cu(II) ( i.e., to hold 17 electrons instead of 18 in Cu(I).