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Question
On heating compound (A) gives a gas (B) which is a constituent of air. This gas when treated with 3 mol of hydrogen (H2) in the presence of a catalyst gives another gas (C) which is basic in nature. Gas C on further oxidation in moist condition gives a compound (D) which is a part of acid rain. Identify compounds (A) to (D) and also give necessary equations of all the steps involved.
Solution
\[\ce{(A) = NH4NO2, (B) = N2, (C) = NH3, (D) = HNO3}\]
\[\ce{\underset{(A)}{NH4NO2} ->[Heat] \underset{(B)}{N2} + 2H2O}\]
\[\ce{N2 + 3H2 ->[Catalyst] \underset{(C)}{2NH3}}\]
\[\ce{4NH3 + 5O2 -> 4NO + 6H2O}\]
\[\ce{2NO + O2 -> 2NO2}\]
\[\ce{3NO2 + H2O -> 2HNO3 + NO}\]
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