Select the correct statements if `9.65 A` current is passed for 1 hour through the cell `:`
`Ag|Ag^(o+)(1M)||Cu^(2+)(1M)|Cu`.

Options

A. `Ag^(+)` will reduce to `Ag` and new `[Ag^(+)] = 0.64 M`
B. Ag will oxidise to `Ag^(+)` and new `[Ag^(+)] = 1.36 M`
C. `Cu` will oxidise to `Cu^(2+)` and new `[Cu^(2+)] = 0.82 M`
D. `Cu^(2+)` will reduce to `Cu` and new `[Cu^(2+)] = 0.82 M`

Answer

B, D

Explanation

On passing the current through the given cell `Ag` will oxidise to `Ag^(+)` and `Cu^(2+)` will reduced to `Cu`.
`:' (w)/(E) = (I xx t)/(96500)` ltbRgt `= (9.65 xx 3600)/(96500)`
`= 0.036`eq. of `Ag^(+) = 0.36` mole of `Ag^(+)`
`= 0.36` eq. of `Cu^(2+)`
`(0.36)/(2)` mole of `Cu^(2+)`
`:. [Ag^(+)] = 1 + 0.36 = 1.36 M`
`[Cu^(2+)] = 1 - 0.18`
`= 0.82 M`