1.

Conectrated aqueous sodium hydroxide can be a separated mixture ofA. `Al^(3+)` and `Sn^(2+)`B. `Al^(3+)` and `Fe^(3+)`C. `Al^(3+)` and `Zn^(2+)`D. `Zn^(2+)` and `Pb^(2+)`

Answer» Correct Answer - B
`NaOH + Al^(=3) rarr underset(("Soluble in NaOH"))underset("Sod.metaaluminate")(NaAIO_(2))`
`NaOH +Fe^(+3) rarr` No reaction (Insoluble in NaOH)


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