1.

For the reaction `:` `A+2B^(3+) rarr 2B^(2+)+A^(2+)` `E^(c-)` of the given redox reaction is `:` `A^(2+)+2e^(-) rarr A` `E^(c-)=Xv` `B^(3+)+e^(-) rarr B^(2+)` `E^(c-)=yV`A. `x-2y`B. `x+y//2`C. `x-y`D. `y-x`

Answer» Correct Answer - d
It is a redox reaction, thus
Cell reaction `:`
At anode `: A rarr A^(2+)+2e^(-)(` Oxidation `)`
`E^(c-)._(o x i d)=-xV,E^(c-)._(red)=xV`
At cathode `: 2B^(3+)2e^(-) rarr 2B^(2+)(` Reduction `)`
`E^(c-)._(red)=yV`
`ulbar(Cell reaction : A+2B^(3+) rarr A^(2+)+2B^(2+))`
`E^(c-)._(cell)=(E^(c-)._(red))_(c)-(E^(c-)._(red))_(a)=(y-x)V`


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