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The quantity of electricity needed to se...

The quantity of electricity needed to separately electrolyse 1 M solution of `ZnSO_(4), AlCl_(3) and AgNO_(3)` completelyis in the ratio of -

A

`2:3:1`

B

`2:1:1`

C

`2:1:3`

D

`2:2:1`

Text Solution

Verified by Experts

The correct Answer is:
A
`underset("1 mol")(Zn^(2+)(aq))+underset(2F)(2e) rarr Zn(s),`
`underset("1 mol")(Al^(3+))+underset(3F)(3e)rarr Al(s)`
`underset("1 mol")(Ag^(+)(aq))+underset(1F)(e)rarrAg(s)`
ratio of quantity of electricity `=2:3:1`
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