Q. Consider the following statements:

Which of the above statement/s is/are incorrect?

1 and 2 only

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1 and 3 only

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1 and 4 only

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3 and 4 only

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Solution

The correct option is A 1 and 2 only
Explanation:

Statement 1 is incorrect: London smog is formed during the cold and humid climates.

Statement 2 is incorrect: Oxidizing smog is formed during warm, dry, and sunny climates.

Classical Smog Photochemical Smog

Formed during cold, humid climate Formed during warm, dry, and sunny climate

Constituents: Smoke, Fog, and SO₂ Constituents: O₃, Nitric Oxide, Acrolein, Proxyacetyl nitrate (PANs), Formaldehyde, etc

Chemically it is a reducing mixture: Reducing Smog Chemically it is an oxidizing mixture: Oxidizing Smog

London Smog is an example of Classical Smog Los Angeles Smog is an example of Photochemical Smog

Suggest Corrections

Classical Smog	Photochemical Smog
Formed during cold, humid climate	Formed during warm, dry, and sunny climate
Constituents: Smoke, Fog, and SO₂	Constituents: O₃, Nitric Oxide, Acrolein, Proxyacetyl nitrate (PANs), Formaldehyde, etc
Chemically it is a reducing mixture: Reducing Smog	Chemically it is an oxidizing mixture: Oxidizing Smog
London Smog is an example of Classical Smog	Los Angeles Smog is an example of Photochemical Smog