A factory was started near a village. Suddenly villagers started feeling the presence of irritating vapours in the village and cases of headache, chest pain, cough, dryness of throat and breathing problems increased. Villagers blamed the emissions from the chimney of the factory for such problems. Explain what could have happened. Give chemical reactions for the support of your explanation. 

This is a  Short Answers Type Questions as classified in NCERT Exemplar

The symptoms which were observed in  the village indicate that oxides of sulphur and nitrogen are released from the chimneys of the factory. These gases are obtained as the product of combustion of fossil fuels such as coal,   gasoline etc. In an automobile engine, at high temperature, when fossil fuel is burnt, dinitrogen and dioxygen get combined to give significant quantities of nitric oxide and nitrogen dioxide. The chemical reactions can be given as-

<p>This is a &nbsp;Short Answers Type Questions as classified in NCERT Exemplar</p><p>The symptoms which were observed in&nbsp; the village indicate that oxides of sulphur and nitrogen are released from the chimneys of the factory. These gases are obtained as the product of combustion of fossil fuels such as coal, &nbsp; gasoline etc. In an automobile engine, at high temperature, when fossil fuel is burnt, dinitrogen and dioxygen get combined to give significant quantities of nitric oxide and nitrogen dioxide. The chemical reactions can be given as-</p><div><div><picture><source srcset="https://images.shiksha.com/mediadata/images/articles/1743672302phpkPb8Es_480x360.jpeg" media=" (max-width: 500px)"><img src="https://images.shiksha.com/mediadata/images/articles/1743672302phpkPb8Es.jpeg" alt="" width="233" height="112"></picture></div></div>

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