`NiCl_(2) overset(KCN)to "complex"A`
`NiCl_(2) underset("excess") overset(KCl)to "complex"B`
A & B complexes have the co-ordination number 4.
The hybridisation of both complexes are :
A. `dsp^(2)`
B. `sp^(2) & dsp^(2)`
C. `dsp^(2) & sp^(3)`
D. both `sp^(3)`
