Q.

How many coulombs are required in order to reduce 12.3 g of nitrobenzene to aniline?

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579 C

5790 C

57900 C

579000 C

answer is C.

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Detailed Solution

Moles of nitrobenzene used in the reaction =12.3123=0.1H2 required for reduction = 0.1 x 3 = 0.3 molAmount of charge required to liberate 0.3 mole of hydrogen = 2 x 96500 x 0.3 = 57900 C.

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