Question

In the complex ion `[Cu(CN_(4))]^(3-)` the hybridization state, oxidation state and number of unpaired electrons of copper are respectively
A. `dsp^(2, +1,1`
B. `sp^(3), +1`, zero
C. `sp^(3), +2,1`
D. `dsp^(3),+2,` zero

Answer 1

Correct Answer - B
`[Cu^(+1)(CN)_(4)^(-4)]^(-3)`

group state
CN is strong field ligand , `Delta ` is high
Excited State `:`

Hybridisation `=sp^(3)` , oxidation state of `Cu= +1`
Number of unpaired electron `=0`