If is replaced by in the complex , which of the following properties are expected to get changed? (A) Geometry (B) Geometrical isomerism (C) Optical isomerism (D) Magnetic properties [2023]

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Solution

Q.
If ${Ni}^{2 +}$ is replaced by ${Pt}^{2 +}$ in the complex ${[{NiCl}_{2} {Br}_{2}]}^{2 -}$ , which of the following properties are expected to get changed [2023]

(A) Geometry

(B) Geometrical isomerism

(C) Optical isomerism

(D) Magnetic properties

1 B and C

2 A, B and D

3 A and D

4 A, B and C

Ans.
(2)

${[{NiCl}_{2} {Br}_{2}]}^{2 -} \to s p^{3}$ unpaired electrons = 2 (No geometrical isomerism)

${[{PtCl}_{2} {Br}_{2}]}^{2 -} \to d s p^{2} \to$ shows (geometrical isomerism) unpaired electrons = 0

Both the complex species are optically inactive.

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