1.

Which of the following mixtures of ions in solution can be separated by using an NH_(3) solution

Answer»

`Hg_(2)^(2+)` and `Ag^(+)`
`BI^(3+)` and `Cu^(2+)`
`Ag^(+)` and `Pb^(2+)`
`Cu^(2+)` and `Cd^(2+)`

SOLUTION :Either due to FORMATION of different colour precipitates (or) due to SOLUBILITY of one of resultant COMPLEX


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