1.

The only cations present in slightly acidic solutions are Fe^(3+),Zn^(2+) and Cu^(2+). The reagent that when added in excess to this solution would identify and separate Feo in one step is

Answer»

2M HCl
`6M NH_(3)`
6M NaOH
`H_(2)S`

Solution :`NH_(3)` FORMS soluble COMPLEX with `ZN^(2+)` and `Cu^(2+)`m leaving `Fe^(2+)`. Hence, (B) is the correct answer


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