1.

Select the incorrect reduction process.

Answer»

`2[Ag(CN)_(2)]^(-) +Zn to [Zn(CN)_(4)]^(2-)+2Ag `
`CuO+H_(2) to Cu+H_(2)O`
`ZnO+H_(2) to Zn +H_(2)O`
`MgO+C to Mg +CO`

SOLUTION :It is not POSSIBLE for a less reactive elementto reduce a more reactiveelement . Zn is moderately reactive metal and is more reactive as compared to hydrogen .
Thus , hydrogen hasno ability to reduce `Zn^(2+)` to Zn. Cu being less reactive is reduced by hydrogen .
Hence reaction 'c' is not possible .


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