The hybridization involved in complex [ Ni ( CN ) 4 ] 2 - is (At. No. Ni = 28) [2015]

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Solution

Q.
The hybridization involved in complex ${[Ni {(CN)}_{4}]}^{2 -}$ is (At. No. Ni = 28) [2015]

1 $s p^{3}$

2 $d^{2} s p^{2}$

3 $d^{2} s p^{3}$

4 $d s p^{2}$

Ans.
(4)

${[Ni {(CN)}_{4}]}^{2 -}$ : Oxidation number of Ni = +2

Electronic configuration of ${Ni}^{2 +}$ $: [A r] 3 d^{8} 4 s^{0}$

Pairing of electrons in $d$ -orbital takes place due to the presence of strong field ligand $({CN}^{-})$ .

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