D-And F-Block Elements Ques 255
Question: Among the following, the compound that is both paramagnetic and coloured is
[IIT-JEE 1997]
Options:
A) $ K_2Cr_2O_7 $
B) $ {{(NH_4)}_2}(TiCl_6) $
C) $ VOSO_4 $
D) $ K_3[ Cu(CN_4) ] $
Show Answer
Answer:
Correct Answer: C
Solution:
$ {{V}^{+4}},\to 3d^{1}4s^{0} $ 1 unpaired electrons. Hence, it is paramagnetic and coloured compound.
