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