D-And F-Block Elements Ques 491

Question: Chloro compound of Vanadium has only spin magnetic moment of 1.73 BM. This Vanadium chloride has the formula:

Options:

A) $ VCl_2 $

B) $ VCl_4 $

C) $ VCl_3 $

D) $ VCl_5 $

Show Answer

Answer:

Correct Answer: B

Solution:

$ \mu =\sqrt{n(n+2)} $ $ 1.73=\sqrt{n(n+2)} $

On calculating the value of n we find n = 1 No. of unpaired electrons = 1 hence its configuration will be $ V( 23 )=[ Ar ]3d^{3}4s^{2} $ $ {{V}^{4+}}=[Ar]3d^{1} $

$ \therefore $ Its chloride has the formula $ VCl_4 $



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