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Which is/are correct among the following...

Which is/are correct among the following? Given the half cell EMFs
`E_(Cu^(2+)//Cu)^(@)=0.337V, E_(Cu^(+)|Cu)^(@)=0.521V`

A

`Cu^(+1)` disproportionates

B

`Cu` and `Cu^(2+)` comproportionates.

C

`E_(Cu|Cu^(+2))^(0)+E_(Cu^(+1)|Cu)^(0)` is positive

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
A, C
`2Cu^(+1)toCu+Cu^(+2)`
`2Cu^(+1)+2eto2Cu`
`underline(Cu-2etoCu^(+2))`
`underline(2Cu^(+1)toCu^(+2)+Cu)`
`thereforeE^(@)(2xx0.521+2(-0.337))/(2)=0.184`
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