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  9. Q108

UPPSC PCS 2024 · Question 108 of 150

Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R). Assertion (A): CO2 , SO2 , and NO2 gases get dissolved in rain water and produce acid rain. Reason (R): Atmospheric air is polluted due to high concentration of gases like carbon dioxide, sulphur dioxide and oxides of nitrogen. Select the correct answer from the codes given below:

General Knowledge

  1. ABoth (A) and (R) are true and (R) is the correct explanation of (A).Correct
  2. B(A) is false, but (R) is true.
  3. CBoth (A) and (R) are true, but (R) is not the correct explanation of (A).
  4. D(A) is true, but (R) is false.

Answer: A. Both (A) and (R) are true and (R) is the correct explanation of (A).

Explanation

Assertion (A): Correct. Gases CO2, SO2, and NO2 dissolve in rainwater to form acids such as carbonic acid, sulfuric acid, and nitric acid, leading to acid rain.

Source: edurev.in UPPSC Prelims 2024 GS Paper I (English); answers per selfstudywala.com detailed solution based on UPPCS official answer key

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