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1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Which statement is not true about photochemical smog?

A
Photochemical smog is harmful to humans but has no effect on plants.
B
Plants like Pinus, Juniparus can help in reducing the photochemical smog.
C
Photochemical smog occurs in warm, dry and sunny climate.
D
Common components of Photochemical smog are ozone, nitric oxide, acrolein, formaldehyde and peroxyacetyl nitrate.
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

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
Both Statement I and Statement II are false
B
Statement I is correct but Statement II is false.
C
Statement I is incorrect but Statement II is true.
D
Both Statement I and Statement II are true.
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Match List-I with List-II :

List-I
List-II
(a) Biochemical oxygen demand (i) oxidising mixture
(b) Photochemical smog (ii) polar stratospheric cloud
(c) Classical smog (iii) organic matter in water
(d) Ozone layer depletion (iv) reducing mixture

Choose the correct answer from the options given below :

A
(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
B
(a) - (i), (b) - (iv), (c) - (ii), (d) - (iii)
C
(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
D
(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Match List-I with List-II :

List-I List-II
(a) $$2S{O_2}(g) + {O_2}(g) \to 2S{O_3}(g)$$ (i) Acid rain
(b) $$HOCl(g)\buildrel {hv} \over
\longrightarrow \mathop O\limits^ \bullet H + \mathop C\limits^ \bullet l$$
(ii) Smog
(c) $$CaC{O_3} + {H_2}S{O_4} \to CaS{O_4} + {H_2}O + C{O_2}$$ (iii) Ozone depletion
(d) $$N{O_2}(g)\buildrel {hv} \over
\longrightarrow NO(g) + O(g)$$
(iv) Tropospheric pollution


Choose the correct answer from the options given below.
A
(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
B
(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
C
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
D
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
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