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Question
Starting from hydrogen gas how would you obtain a basic gas.
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Solution
3 volumes of H2 react with 1 vol. of N2 gas in presence of catalyst (finely divided Fe at 450-500°C) and a basic gas ammonia is produced.
\[\ce{\underset{\text{1 vol.}}{N2} +\underset{\text{3 vol.}}{3H2} ⇌[450-500°C][Fe]\underset{\text{(Ammonia gas)}}{2NH3}}\]
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