AIPMT PRELIMS2001Chemistry-Coordination Compounds

AIPMT PRELIMS 2001 Chemistry Magnetic Properties MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Which statement is incorrect :

A

Ni(CO)₄ – Tetrahedral, paramagnetic

B

Ni(CN)₄²⁻ - Square planar, diamagnetic

C

Ni(CO)₄ - Tetrahedral, diamagnetic

D

[NiCl₄]²⁻ – Tetrahedral, paramagnetic

Correct Answer

Option A

Detailed Explanation

Ni(CO)₄ is tetrahedral and diamagnetic due to the pairing of electrons in the presence of strong field CO ligands.

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