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Question

A compound of vanadium has a magnetic moment of 1.73 BM. 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 C VCl4
Magnetic moment is given by, μ=n(n+2)
where n is the number of unpaired electron.
Given: μ=1.73 BM
μ=n(n+2)=1.73
n=1
Since only one unpaired electron is there, the ion is V4+ and its chloride is VCl4.

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