How many moles of gas are required to completely reduce one mole of nitrobenzene to aniline using catalytic hydrogenation?

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Question

How many moles of $H_2$ gas are required to completely reduce one mole of nitrobenzene to aniline using catalytic hydrogenation?

Prashant Kotian · Accepted Answer

Correct answer: 3. The balanced chemical equation for the direct reduction of nitrobenzene to aniline is . Thus, exactly 3 moles of hydrogen gas are consumed per mole of nitrobenzene to reduce the nitro group and remove oxygen as water.

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