1.

Which of the following is/are connectprocess for the separation of given ions ?

Answer»

`Cu^(2+)` from the mixture of `Cu^(2+)`and `Cd^(2+)` in aqueous solution
`Cu^(2+)+ Cd^(2+) overset("Add excess") underset(KCN) tooverset("Pass"H_(2)S) underset("and filter") toCu^(2+)`in the filtrate
`Cu^(2+)` from the mixture of `Cu^(2+)`and `Cd^(2+)` in aqueous solution
`Cu^(2+)+ Cd^(2+) overset("Add excess") underset(KCN) tooverset("Pass" H_(2)S) underset("and filter") toCu^(2+)`in the precipitate
`Zn^(2+)` from the mixture of `Zn^(2+)`and `Cu^(2+)` in aqueous solution
`Zn^(2+)+ Cu^(2+) overset(H_(2)S+dil HCI) tooverset("Filter") TOZN^(2+)`in the precipitate
`Fe^(3+)` from the mixture of `Fe^(2+)`and `Fe^(2+)` in aqueous solution
`Fe^(2+)+ Fe^(3+) overset(NH_(4)CI +NH_(3))overset("solution and filter")RARR Fe^(2+)`in the precipitate

Answer :a,b


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