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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

`3.164amp`

Text Solution

Verified by Experts

The correct Answer is:
3
`w=Z i t`
`2=(197)/(3)xx(ixx20xx60)/(96500)" "[V.f` for Au`=3]`
`i=2.48amp.` Ans.
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