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A very thin copper plate is electro- pla...

A very thin copper plate is electro`-` plated with gold using gold chloride in `HCl`. The current was passed for `20 mi n`. And the increase in the weight of the plate was found to be `2g.[Au=197]`. The current passed was `-`

A

`0.816 amp`

B

`1.632 amp`

C

`2.448 amp`

D

`3.264 amp`

Text Solution

Verified by Experts

The correct Answer is:
3
Gold chloride `AuCl_(3)`
`m=(M)/(96500xxn)1xxt`
`l=(2xx96500xx3)/(197xx20xx60)=2.448A`.
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