`NiCl_(2)overset(KCN)underset(HCN) to "Complex " A`
`NiCl_(2)overset(KCl)underset(excess) to "Complex " B`
A and B complexes have the co-ordination number 4.
The IUPAC name of complexes A and B are respectively :

Options

A. Potassium tetracyanonickelate(II) and Potassium tetrachloronickelate(II)
B. Potassium tetracyanonickel (II) and Potassium tetrachloronickel(II)
C. Potassium cyanonickelate(II) and Potassium chloronickel(II)
D. Potassium cyanonickel(II) and Potassium chloronickel(II)

Answer

A

Explanation

`A to underset(dsp^(2)("diamag".))(K_(2)[Ni(CN)_(4)])," "B to underset(sp^(3)(2 u.p.e^(-)))(K_(2)[NiCl_(4)])`