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A constant current was passed through a ...

A constant current was passed through a solution of `AuCl_(4)^(c-)` ion between gold electrodes. After a period of `10.0 mi n`, the increase in the weight of cathode was `1.314g`. The total charge passed through solution is `(` atomic weight of `AuCl_(4)^(c-)=339)`

A

`1.16 xx 10^(-2)F`

B

`3.5xx10^(-2)F`

C

`2xx10^(-2)F`

D

`4xx10^(-3)F`

Text Solution

Verified by Experts

The correct Answer is:
c
`Au^(3+)+3e^(-) rarr Au`
`(W)/(197//3)=(Charg e)/(96500)`
`:. Charg e=(1.314xx3xxF)/(197)=0.02F`
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