Question

Which of the following acids is not found in acid rain?

• A. Carbonic acid
• B. Suluric acid
• C. Nitric acid
• D. None of the above

Answer 1

The correct option is D

None of the above

Explanation for the correct option:

(D) None of the above

• Rain creates carbonic acid when carbon dioxide and water interact.
• In acid rain, sulfur trioxide and water combine to create sulfuric acid.
• Nitric acid is created in acid rain when nitrogen monoxide and water mix.
• Carbonic acid, sulfuric acid and nitric acid, all are found in acid rain.

Explanation for the incorrect options:

(A) Carbonic acid

1. Precipitation that is not polluted is naturally acidic.
2. The $\mathrm{pH}$ of typical rain is roughly $5.6$ on the $\mathrm{pH}$ scale
3. Water includes both ambient gases and carbon dioxide, which dissolves to generate carbonic acid.

(B) Sulphuric acid

1. Any type of precipitation with high concentrations of sulfuric acids is referred to as acid rain.
2. Snow, fog, and little pieces of dry material that fall on Earth can also be examples of it.
3. Acid rain typically has a $\mathrm{pH}$ between $4.2$ and $4.4$, whereas normal rain has a slightly acidic $\mathrm{pH}$ of $5.6$.

(C) Nitric acid

1. When sulfur dioxide $\left({\mathrm{SO}}_2\right)$ and nitrogen oxides $\left({\mathrm{NO}}_{\mathrm{X}}\right)$ are released into the atmosphere and carried by wind and air currents, acid rain is the outcome.
2. Nitric and sulfuric acids are created when the $\left({\mathrm{SO}}_2\right)$ and $\left({\mathrm{NO}}_{\mathrm{X}}\right)$ combine with water, oxygen, and other substances.
3. Then, before hitting the ground, they combine with water and other substances.

Therefore, the correct option is (D) None of the above