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E^(θ) values of some redox couples are g...

`E^(θ)` values of some redox couples are given below. On the basis of these values choose the correct option.
`E^(θ)` values: `Br_(2)//Br^(-) = +1.90`
`Ag^(+)//Ag(s)=+0.80`
`Cu^(2+)//Cu(s)=+0.34, I_(2)(s)//I^(-)=+0.54`

A

Cu will reduce `Br^(-)`

B

Cu will reduce Ag

C

Cu will reduce `I^-`

D

Cu will reduce `Br_2`

Text Solution

Verified by Experts

The correct Answer is:
D
Copper will reduce `Br_2` because `E^@` (1.09-0.34 = 0.75V) is +ve .
`2Cu+2Br_2 rarr 2CuBr_2`
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