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For some reactions the standard reducti...

For some reactions the standard reduction potentials are given below :
`Zn^(2+) + 2 e to Zn , " " E^(@) = -0.762 V`
`Fe^(2+) + 2e to Fe , " " E^(@) = -0.440 V`
`Cu^(2+) + 2e to Cu , " " E^(@) = + 0.345 V`
`Ag^(+) + e to Ag " " E^(@) = + 0.800V`
Which one of the following is most easily oxidised ?

A

Zn

B

Cu

C

Fe

D

Ag

Text Solution

Verified by Experts

The correct Answer is:
A
Less the reduction potential or greater the oxidation potential , more easily the substance is reduced `E_(Zn)^(@) lt E_(Fe)^(@) lt E_(Cu)^(@) lt E_(Ag)^(@)` .
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