AIPMT PRELIMS2002Chemistry-Coordination Compounds

AIPMT PRELIMS 2002 Chemistry Magnetic Properties MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagnetic with the spin of electron :-

A

[Cr(CO)₆]

B

[Fe(CO)₅]

C

[Fe(CN)₆]³⁻

D

[Cr(NH₃)₆]³⁺

Correct Answer

Option D

Detailed Explanation

[Fe(CN)₆]³⁻ is paramagnetic due to the presence of unpaired electrons in the d-orbitals of iron.

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