JEE Main 2023 — Environmental Chemistry Question with Solution
From: JEE Main 2023 (Online) 12th April Morning Shift
Question
Match List I with List II
| LIST I | LIST II | ||
|---|---|---|---|
| A. | Nitrogen oxides in air | I. | Eutrophication |
| B. | Methane in air | II. | pH of rain water becomes 5.6 |
| C. | Carbon dioxide | III. | Global warming |
| D. | Phosphate fertilisers in water | IV. | Acid rain |
Choose the correct answer from the options given below :
Choose an option
Show full solutionCorrect option: D
Correct answer
DA-IV, B-III, C-II, D-I
Step-by-step explanation
Let's match the items in List I with the items in List II:
A. Nitrogen oxides in air - These are responsible for acid rain. So, A-IV.
B. Methane in air - Methane is a greenhouse gas, contributing to global warming. So, B-III.
C. Carbon dioxide - Normal rain water has a pH of 5.6 (slightly acidic). This is because it is exposed to the carbon dioxide in the atmosphere. So, C-II.
D. Phosphate fertilizers in water - These contribute to eutrophication. So, D-I.
Therefore, the correct answer is:
A-IV, B-III, C-II, D-I
A. Nitrogen oxides in air - These are responsible for acid rain. So, A-IV.
B. Methane in air - Methane is a greenhouse gas, contributing to global warming. So, B-III.
C. Carbon dioxide - Normal rain water has a pH of 5.6 (slightly acidic). This is because it is exposed to the carbon dioxide in the atmosphere. So, C-II.
D. Phosphate fertilizers in water - These contribute to eutrophication. So, D-I.
Therefore, the correct answer is:
A-IV, B-III, C-II, D-I
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This is a previous-year question from JEE Main 2023, covering the Environmental Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.