Correct option is C. Oxide of nitrogen is formed
The oxides of carbon, nitrogen and sulphur that are released on burning fossil fuels. The air pollution caused by burning of coal or petroleum products.
The oxides of carbon, nitrogen and sulphur that are released on burning
fossil fuels are acidic oxides. These lead to acid rain which affects our
water and soil resources. In addition to the problem of air pollution,
recall the green-house effect of gases like carbon dioxide.