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Electrolysis and Electrolytes

When an aqueo...

Question

When an aqueous solution of zinc sulphate is subjected to electrolysis, 280 ml of oxygen gas at STP is liberated at anode. Calculate the quantity of electricity passed through the electrolyte.

A

0.05 F

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B

0.5 F

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C

0.005 F

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D

5 F

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Solution

The correct option is A 0.05 F
$22.4 l O_{2}$ at STP required 4 Faradays.
$0.28 l O_{2}$ at STP required $= \frac{4 \times 0.28}{22.4} = 0.05 F$

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