Question

Acid rain is caused by or recent reports of acid rain in some industrial cities are due to the effect of atmospheric pollution by:

• A. excessive release of $C{O}_2$ by burning of fuels like wood and charcoal.
• B. excessive release of $N{O}_2$ and $S{O}_2$ in atmosphere by burning of fossil fuels.
• C. excessive release of $CO$ in atmosphere
• D. excessive release of $N{H}_3$ by industrial plants and coal gas.

Answer 1

The correct option is B excessive release of $N{O}_2$ and $S{O}_2$ in atmosphere by burning of fossil fuels.

When $S{O}_2$ pollution in the air is much higher. Sometimes,$S{O}_2$ mixes in the air with small particles of metals near the factories and gets oxidised into sulphur trioxide $\left(S{O}_3\right)$.
These gases are harmful and they react with water to form sulphuric acid $\left(H_{2}S{O}_4\right)$ or sulphurous acid $\left(H_{2}S{O}_3\right)$ and come down to earth with rainwater; it is called acid rain or acid precipitation.
Option (b) is correct