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Rgw atomic weight of Al is 27. When a cu...

Rgw atomic weight of Al is `27`. When a current of `5F` is passed through a solution of `Al^(+++)` ions, the qeight of `AL` deposited is.

A

` 27 g`

B

` 36 g`

C

` 39 g`

D

` 45 g`

Text Solution

Verified by Experts

The correct Answer is:
D
`Al^(3+) + 3e^- rarr Al`
` E_(Al) = (27)/3 =9`
`W_(Al) = E_(Al) xx` No of faradays ` = 9xx 5 = 45 g`.
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