NEET Environmental Chemistry PYQ practice sheet

3 previous-year NEET Chemistry questions from Environmental Chemistry, newest papers first. Environmental Chemistry carries 3 of the Chemistry questions in NEET 2020 to 2026, so this is a good place to test yourself after revising the chapter. Marking: +4 correct, −1 wrong.

1. 1.

   NEET 2023

   Given below are two statements : Statement I : The nutrient deficient water bodies lead to eutrophication. Statement II : Eutrophication leads to decrease in the level of oxygen in the water bodies. In the light of the above statements, choose the correct answer from the options given below :

   • (A)
     Statement I is incorrect but Statement II is true.
   • (B)
     Both Statement I and Statement II are true.
   • (C)
     Both Statement I and Statement II are false.
   • (D)
     Statement I is correct but Statement II is false.
2. 2.

   NEET 2022

   The pollution due to oxides of sulphur gets enhanced due to the presence of: (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide Choose the most appropriate answer from the options given below:

   • (A)
     (a), (c), (d) only
   • (B)
     (a), (d) only
   • (C)
     (a), (b), (d) only
   • (D)
     (b), (c), (d) only
3. 3.

   NEET 2021

   Match List - I with List - II. List - I: (a) $\mathrm{2SO_2(g) + O_2(g) \rightarrow 2SO_3(g)}$; (b) $\mathrm{HOCl(g) \xrightarrow{h\nu} \dot{O}H + \dot{C}l}$; (c) $\mathrm{CaCO_3 + H_2SO_4 \rightarrow CaSO_4 + H_2O + CO_2}$; (d) $\mathrm{NO_2(g) \xrightarrow{h\nu} NO(g) + O(g)}$ List - II: (i) Acid rain; (ii) Smog; (iii) Ozone depletion; (iv) Tropospheric pollution Choose the correct answer from the options given below.

   • (A)
     (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
   • (B)
     (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
   • (C)
     (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
   • (D)
     (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)