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Electrolysis and Electrolytes

The time requ...

Question

The time required to remove electrolytically one fourth of Ag from 0.2 L of 0.1 M AgNO₃solution by a current of 0.1 ampere is approximately:

A

40 min

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B

320 min

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C

160 min

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D

80 min

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Solution

The correct option is D
80 min

Total [Ag⁺] = 0.2 x 0.1 = 0.02mol

Electricity required to remove 1 mol of Ag⁺ = 96500C

Electricity required to remove one- fourth of (0.02) mol of Ag⁺=

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