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# The electrochemical equivalence of silver is 0.0012g/C…

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A. 6000A

B. 100A

C. 10A

D. 1A

B

## EXPLANATION…

M = ZIT

Where M = mass = 36g,

Z = electrochemical equivalence = 0.0012g/C,

T = time = 5 minutes = 5 x 60 = 300 seconds.

I = current = ?

Therefore I = M/ZT = 36/(0.0012 x 300) = 36/ 0.36 = 100A

### Now for the right answer to the above question:

1. Option A is incorrect.
2. Option B is correct.
3. C is incorrect.
4. D is not the correct answer.
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## HELPFUL TIPS…

You may please note these/this:

• Faraday’s first law of electrolysis can mathematically be represented as M = ZIT.

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/ culled from 2018 JAMB-UTME physics question 13 /

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