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On passing 3 A of electricity for 50 min...

On passing 3 A of electricity for 50 min, 1.8 g of metal deposits. The equivalent mass of metal is

A

20.5

B

25.8

C

19.3

D

30.7

Text Solution

Verified by Experts

The correct Answer is:
C
`W_("metal")=(ExxIxxt)/(96500)=(Exx3xx50xx60)/(96500)`
`E=(96500xxomega)/(3xx50xx60)=(96500xx1.8)/(3xx50xx60)=19.3`
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