1.

Concentrated aqueous sodium hydroxide can separate a mixture of

Answer»

`AL^(3+)` and `Sn^(2+)`
`Al^(3+)` and `Fe^(3+)`
`Al^(3+)` and `Zn^(2+)`
`Zn^(2+)` and `PB^(2+)`

ANSWER :B


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