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Of the following reactions, only one is ...

Of the following reactions, only one is a redox reaction.Identify it.

A

`Ca(OH)_(2)+2HCl to CaCl_(2)+2H_(2)O`

B

`BaCl_(2)+MgSO_(4) to BaSO_(4)+MgCl_(2)`

C

`2S_(2)O_(7)^(2-)+2FeO to 2Cu+2Fe+SO_(2)`

D

`Cu_(2)S+2FeO to 2Cu+2Fe+SO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
In redox reaction oxidation and reduction takes place side by side. `Cu_(2)S+2FeO to 2Cu+2Fe+SO_(2)`
O.N. of Cu changes from `+1` to 0 (reduction) and O.N. of S changes from `-2` to `+4` (oxidation).
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MARVEL PUBLICATION-REDOX REACTIONS -TEST YOUR GRASP
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