1.

The aqueous solution of the following salts will be coloured in the case of

Answer»

`Zn(NO_(3))_(2)`
`LiNO_(3)`
`CrCl_(3)`
Potash alum

Solution :`CrCl_(3)`, as `Cr^(+3) implies3d^(3)`, has unpaired electron in d-orbital as a result it will show PARAMAGNETISM and THUS forms coloured COMPLEXES.


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