Which of the following statement(s) is/are correct ?

Options

A. `Ni(CO)_(4)` is diamagnetic and `sp^(3)` hybridized.
B. Complex `[Cu(CN)_(4)]^(3-)` is paramagnetic and `Cu^(2+)` ion is `dsp^(2)` hybridized.
C. `[MnBr_(4)]^(2-)` ion is paramagnetic and `sp^(3)` hybridized.
D. Vaska's catalyst, that is, `[IrCl(CO)(P Ph_(3))_(2)]` is diamagnetic and `Ir^(+)` ion is `dsp^(2)` hybridized.

Answer

A, C, D