Question

Starting from nitrogen in air, enlist the reactions with the help of balanced equations, which result in the conversion of nitrogen in an internal combustion- engine, to the acids formed which are responsible for acid rain.

Answer 1

In the internal combustion engine atmospheric air containing 80% N₂ is used for combustion of fossil fuel.
At high temp. N₂ + O₂ → 2NO .
NO is released into air of atmosphere where it forms N0₂ in presence of lightning discharge.
2NO + 0₂ → 2NO₂
N0₂ when comes in contact with water vapours to form nitric acid and falls in the form of acid rain
2N0₂ + H₂0 →HNO₃ + HNO₂
2H₂0 + 4NO₂ + 0₂ → 4HNO₃