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Question

The magnetic moment of K2[MnCl4] corrected to the nearest integer is _________.

A
6 BM
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B
7 BM
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C
8 BM
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D
5 BM
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Solution

The correct option is B 6 BM

In K2[MnCl4] Mn is in +2 state, coordination number is 4.

Since Cl is a weak field ligand, the five 3d electrons remain unpaired.

Magnetic moment =n(n+2)BM=5(5+2)BM

=35=5.91BM6BM

Option A is correct.

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