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Question

During electrolysis of a solution of AgNO3, 9650 coulombs of charge is passed through the solution. What will be the mass of silver deposited on the cathode?

A
108g
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B
10.8g
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C
1.08g
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D
216g
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Solution

The correct option is B 10.8g
According to this Faraday's first law, the chemical deposition due to flow of current through an electrolyte is directly proportional to the quantity of electricity (coulombs) passed through it.
The given reaction is,
Ag++eAg
Amount of Ag deposited by 1F(96500) is 108g
So, amount of Ag deposited by 9650C=10896500×9650=10.8g

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