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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 ? A. Geometry B. Geometrical isomerism C. Optical isomerism D. Magnetic properties

1. A and D
2. A, B and C
3. B and C
4. A, B and D

Correct answer: A, B and D

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