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Oxidation of succinate ion produces ethylene and carbon dioxide gases. On passing 0.2 Faraday electricity through an aqueous solution of potassium succinate, the volume of gases (at both cathode and anode) at STP (1atm and 273 K) is:

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a
8.96 L
b
4.48 L
c
6.72 L
d
2.24 L

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detailed solution

Correct option is A

The reactions occurring are:

Anode 

Cathode 2H2O(l)+2eH2(g)+2OH(aq)

On passing 0.2 F of electricity, 0.1mol  of C2H4,0.2 mol of CO2 and 0.1mol of H2 will be released. The volume of gases will be 22.4 L mol1(0.4mol)=8.96 L

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