Q.

The hybridization of Ni, shape, and number of unpaired electrons present in [NiCl4]2 are respectively

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a

 sp3, tetrahedral, 2 

b

 dsp2, tetrahedral, 2
 

c

sp3, tetrahedral, 1

d

sp3, square planar, 2

answer is A.

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Detailed Solution

It is given to find out the hybridization of Ni, shape, and number of unpaired electrons present in [NiCl4]2

In [NiCl4]2, the oxidation state of Ni is +2. So, the electronic configuration is 3d8

Explanation

Six electrons are paired and two remain unpaired in the ground state. 
Chloride ion is a weak ligand and thus is unable to pair up the electrons. 
4s and 4p orbitals undergo sp3 hybridization. 

Hence the correct answer is A) sp3, tetrahedral, 2

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The hybridization of Ni, shape, and number of unpaired electrons present in [NiCl4]2– are respectively