1.

In an aqueous solution, hydrogen (H_(2)) will not reduce:

Answer»

`Fe^(3+)`
`Cu^(2+)`
`ZN^(2+)`
`AG^(+)`

Solution :Only `Zn` and `Fe` are above `H`, ALSO `Fe^(3+)` can be REDUCED to `Fe^(2+)` by `H`.


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