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On passing 3 Ampere of electricity for 5...

On passing 3 Ampere of electricity for 50 minutes, 1.8 g metal is deposited. 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=(96500xxw)/(3xx50xx60)=(96500xx1.8)/(3xx50xx60)=19.3`
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