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Question

The compound of vanadium has magnetic moment of 1.73 BM. The vanadium chloride has the formula:

A
VCl2
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B
VCl3
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C
VCl4
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D
VCl5
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Solution

The correct option is B VCl4
As we know,
Magnetic moment =n(n+2)BM =n(n+2)=1.73BM
Thus, n=1 (one unpaired electron)
Electronic configuration:
V(23):1s22s22p63s23p63d34s2
V4+:1s22s22p63s23p63d1 with one unpaired electron. So its chloride is VCl4

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