From where does ozone come in the photo chemical smog?

Short/Brief Note

\[\ce{NO2 ->[Sunlight] NO + (O)}\]

O₃ are strong oxidizing agent and can react with unburnt hydrocarbons in polluted air to form formaldehyde, acrolein and peroxy acetyl nitrate (PAN).

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Types of Environmental Pollution

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Chapter 15: Environmental Chemistry - Evaluation [Page 279]

Chapter 15 Environmental Chemistry
Evaluation | Q II. 6. | Page 279

Bhopal Gas Tragedy is a case of ________.

Photo chemical smog formed in congested metropolitan cities mainly consists of ______.

Living in the atmosphere of CO is dangerous because it ______.

Release of oxides of nitrogen and hydrocarbons into the atmosphere by motor vehicles is prevented by using ______.

Biochemical oxygen Demand value less than 5 ppm indicates a water sample to be ______.

Assertion (A): If BOD level of water in a reservoir is more than 5 ppm it is highly polluted.

Reason(R): High biological oxygen demand means high activity of bacteria in water.

What would happen, if the greenhouse gases were totally missing in the earth’s atmosphere?

Define smog.

Explain how does greenhouse effect cause global warming.

Differentiate the following:

Viable and non-viable particulate pollutants