The magnetic moment of [NiCl₄]²-} [Atomic number : Ni = 28]

CBSE Class 12 Chemistry 2023 All Sets Solved Paper

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Question : 14 of 18

Marks: +1, -0

The magnetic moment of

[NiCl_4]^{2-}

[Atomic number : Ni = 28]

1.82 BM
2.82 BM
4.42 BM
5.46 BM

Solution:

The oxidation state of Ni in

[NiCl_4]^{2-}=+2

∴

Ni=[Ar]4s^23d^8

Ni^{+2}=[Ar]3d^8

Number of unpaired electron = 2
∴ magnetic moment =

{√{2(2+2)}}

B.M.
=

{√{8}}

= 2.82 BM

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