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Which oxides are mainly associated with Photo-chemical Smog?

Which oxides are mainly associated with Photo-chemical Smog? Correct Answer Nitrogen oxides

The Correct Answer is Nitrogen oxides.

Key Points

  • Photochemical smog is a brownish-grey haze caused by the action of ultraviolet solar radiation on atmospheres contaminated with hydrocarbons and nitrogen oxides.
  • It includes anthropogenic air contaminants, especially ozone, nitric acid, and organic compounds that are trapped by temperature inversion near the ground.
  • These and also some other contaminants can affect human health and cause plant damage. Because of some of its gaseous components, photochemical smog also has an unpleasant odor.
  • It appears that photochemical smog is caused by nitrogen oxides released into the air as contaminants primarily from internal combustion engines.
  • Absorbing ultraviolet energy, it forms nitric oxide (NO) into free oxygen atoms (O), which then combine with molecular oxygen (O2) to form ozone (O3).
  • Different chemical reactions to create photochemical smog occur in the presence of hydrocarbons (other than methane), some other organic compounds, and sunlight.

Related Questions

Assertion (A): Photochemical smog occurs during the sunny day. Reason (R): When ultraviolet from the sun reacts with nitrogen oxides, NO2 goes through a complex series of reactions with hydrocarbons to produce components of photochemical smog. Select the correct response from the code given below:
Consider the following statements regarding SMOG: 1. SMOG was coined during the 1950's to describe a mixture of smoke and fog experienced in London 2. The principal pollutants in London SMOG are particulates and sulphur compounds  3. The London SMOG occurs generally early in the morning on cold wet winter days  Which of the above statements are correct?
What are essential for the formation of photochemical smog? A. Oxides of sulphur B. Oxides of Nitrogen C. Volatile Organic Compounds D. Water Vapour E. Sunlight Choose the correct answer from the options given below:
Which of the following materials are categories of ceramic materials? 1. Oxides – Alumina, Zirconia 2. Non-oxides – Carbides, Borides, Nitrides, and Silicides 3. Composites – Particulate reinforced combinations of oxides and non-oxides Select the correct answer using the code given below.
In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement All fog is smoke. No smog is fog. Conclusion Some fog is smog. Some smog is fog.
Which of the following air pollutants is/are responsible for photochemical smog? (1) Oxides of nitrogen (2) Ozone (3) Unburnt hydrocarbons (4) Carbon monoxide
Consider the following : 1. Oxides of Hydrogen 2. Oxides of Nitrogen 3. Oxides of Sulphur Which of the above is/are the cause/causes of acid rain?
Which of the following statement (s) is/are Correct? I. Metallic oxides are said to be basic oxides. II. Non-metallic oxides are basic in nature. III. All acids have similar chemical properties.
Which of the following statement(s) is/are correct?
1. Metallic oxides are said to be basic oxides.
2. Non-metallic oxides are basic in nature.
3. All acids have similar chemical properties.
Which of the following gases in the atmosphere is/are responsible for acid rains?
1. Oxides of sulphur
2. Oxides of nitrogen
3. Oxides of carbon
Select the correct answer: