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Question

A quantity of electricity required to reduce 12.3 g of nitrobenzene to aniline arising 50% current efficiency is:

A
1158000C
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B
579000C
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C
231600C
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D
289500C
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Solution

The correct option is A 1158000C

Equivalent mass of nitrobenzene =Molecular mass6
=1236=20.5
Number of equivalents of nitrobenzene =Massequivalent mass=12320.5=6
Amount of charge required =6×96500=579000 coulomb
Amount of charge required when current efficiency is 50%=2×579000
=1158000 C


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