Analytical Chemistry Question 105
Question: The aqueous solutions of the following salts will be coloured in the case of
[IIT 1990]
Options:
A) $ Zn{{(NO_3)}_2} $
B) $ LiNO_3 $
C) $ CrCl_3 $
D) Potash alum
Show Answer
Answer:
Correct Answer: C
Solution:
$ CrCl_3,\ as\ C{r^{+3}}\ \Rightarrow \ 3d^{3}, $ has unpaired electron in d-orbital as a result it will show paramagnetism and thus forms coloured complexes.
BETA
