JEE Main 2023 — Chemistry Inorganic Chemistry

2023mcqhard

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

A. Geometry

B. Geometrical isomerism

C. Optical isomerism

D. Magnetic properties

Official previous-year question

Held on 11 Apr 2023 · Verified 6 Jul 2026.

Options

A
A and D
B
A, B and C
C
B and C
D
A, B and D

Did you get this right?

Solution

When ${\mathrm{Ni}}^{2+}$ is replaced by ${\mathrm{Pt}}^{2+}$ in the complex ${[{\mathrm{NiCl}}_{2}{\mathrm{Br}}_{2}]}^{2-}$ , the following properties are expected to be changed:

A. Geometry: Since ${\mathrm{Pt}}^{2+}$ and ${\mathrm{Ni}}^{2+}$ have different coordination preferences and atomic sizes, the replacement is likely to result in a change in the geometry of the complex. That is it changes to square planar.

B. Geometrical isomerism: If the replacement of ${\mathrm{Ni}}^{2+}$ with ${\mathrm{Pt}}^{2+}$ leads to a change in the ligand arrangement, it can result in the generation of cis and trans isomers.

C. Magnetic properties: ${[{\mathrm{PtCl}}_{2}{\mathrm{Br}}_{2}]}^{2-}$ is diamagnetic.

Both the complex species are optically inactive.

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JEE Main Inorganic Chemistry in other years

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JEE Main 2023 — Chemistry Inorganic Chemistry

2023mcqhard

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

A. Geometry

B. Geometrical isomerism

C. Optical isomerism

D. Magnetic properties

Official previous-year question

Held on 11 Apr 2023 · Verified 6 Jul 2026.

Options

A
A and D
B
A, B and C
C
B and C
D
A, B and D

Did you get this right?

Solution

When ${\mathrm{Ni}}^{2+}$ is replaced by ${\mathrm{Pt}}^{2+}$ in the complex ${[{\mathrm{NiCl}}_{2}{\mathrm{Br}}_{2}]}^{2-}$ , the following properties are expected to be changed:

B. Geometrical isomerism: If the replacement of ${\mathrm{Ni}}^{2+}$ with ${\mathrm{Pt}}^{2+}$ leads to a change in the ligand arrangement, it can result in the generation of cis and trans isomers.

C. Magnetic properties: ${[{\mathrm{PtCl}}_{2}{\mathrm{Br}}_{2}]}^{2-}$ is diamagnetic.

Both the complex species are optically inactive.

Your note

JEE Main Inorganic Chemistry in other years

Keep practicing Inorganic Chemistry

Work through every JEE Main Inorganic Chemistry PYQ, year by year.

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JEE Main 2023 — Chemistry Inorganic Chemistry

Options

Did you get this right?

Solution

Your note

JEE Main Inorganic Chemistry in other years

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Physical Chemistry

Organic Chemistry

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JEE Main 2023 — Chemistry Inorganic Chemistry

Options

Did you get this right?

Solution

Your note

JEE Main Inorganic Chemistry in other years

More JEE Main Inorganic Chemistry questions

Other Chemistry topics for JEE Main

Physical Chemistry

Organic Chemistry

Keep practicing Inorganic Chemistry