Which of the following is present in the Acid Rain?

Correct option is A

The correct answer is Sulphurous Acid.
· Acid rain is primarily caused by the presence of acidic compounds in the atmosphere, which are deposited through precipitation.
· These acidic compounds are typically formed from the emissions of sulfur dioxide (SO) and nitrogen oxides (NOx) into the atmosphere, where they react with water, oxygen, and other chemicals to form acids.
Sulphurous acid:
· Sulphurous acid is indeed related to sulphur dioxide (SO2), which is a major contributor to acid rain.
· When sulphur dioxide dissolves in water, it can form sulphurous acid.
· However, a more significant and strong acid formed from SO, is sulphuric acid (H2SO4) after further oxidation and hydration processes.
Information Booster
· Both Sulphurous acid and Nitrous acid is present in acid rain but Sulphurous acid is a major contributor to acid rain.
Additional Information
· Nitrous acid: Nitrogen oxides (NOx), primarily NO and NO2, contribute to acid rain when they react with water. Nitrous acid can form, but it is less stable. More commonly, nitric acid (HNO3) is produced from nitrogen oxides, which is a major component of acid rain.
· Carbonic acid (H2CO3) is formed when carbon dioxide (CO2) dissolves in water, but it is not a significant component of acid rain.
· Carboxylic acids are a class of organic acids and are not typically involved in acid rain formation.
· Mitigation efforts for acid rain include reducing emissions of sulfur dioxide and nitrogen oxides through cleaner energy sources and industrial practices.