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 $
