These are the main component of 'acid' rain

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1 Answer

answered Mar 2, 2022 by PrashantPandey (238k points)
selected Mar 2, 2022 by ShreeHarpale

Best answer

Correct Answer - Option 1 : Sulphuric acid and nitric acid

Concept-

When the quantity of acids in the raining water is more than the average, then such rain is called 'Acid rain'.
Acid rain means the presence of excessive acids in rainwater.
This word was given by Robert August.
Acids come down on earth with rainwater is called acid rain.
We are aware that normally rainwater has a pH of 5.6. When the pH of the rainwater drops below 5.6, it is called acid rain.

Explanation-.

Smokes from different sources dissolved in atmospheric water vapour to form sulphuric acid and nitric acid.
Sulfur and Nitrogen particles that get mixed with water are found in two ways either man-made as the emissions are given out from industries or by natural causes.

2SO₂ + O₂ + 2H₂O → 2H₂SO₄

4NO2 + O2 + 2H2O → 4HNO₃

These acids come down on earth.
SO2 and NO2 after oxidation and reaction with water are major contributors to acid rain because polluted air usually contains particulate matter that catalyzes the oxidation.

Thereby the main component of acid rain is sulphuric acid and nitric acid.

Smog is fog and smoke.
Smog is a type of intense air pollution that reduces visibility.
Smog is a mixture of smoke (composed of minute particles of carbon, ash, and oil, etc. from coal combustion) and fog in suspended droplet form.
It is the most common kind of air pollution that occurs in cities throughout the world.
There are 2 types of smog- Classical and Photochemical smog.
- Classical smog (London smog) occurs in a cool and humid climate. It is reducing in nature.
- Photochemical smog (Los Angeles smog) occurs in a sunny and dry climate. It is oxidizing in nature.
Smog falls under the category of particulate pollutants since it is composed of very minute particles.
Long-term exposure to smog can be harmful to human health.