Question

The acidity of rain is due to presence of:

• A. $H_{2}S{O}_4$
• B. $H_{2}S{O}_3$
• C. $HCl$
• D. both $A$ and $B$

Answer 1

The correct option is D both $A$ and $B$

• When oxides of sulfur and nitrogen are emitted by the industries, they combine with the atmospheric moisture to form acids.
• These acids are responsible for the acidic nature and lower pH of the rains.
• Sulfur oxides react with water to form sulfurous acid and sulfuric acid $\left(H_{2}S{O}_4\right)$. These acids are partly responsible for the acidity of rain. The pH of acid rain is 5.5

Hence, the correct answer is option D.