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JEE Main 2023 (Online) 25th January Morning Shift
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Some reactions of NO$$_2$$ relevant to photochemical smog formation are

JEE Main 2023 (Online) 25th January Morning Shift Chemistry - Environmental Chemistry Question 14 English

Identify A, B, X and Y :

A
$$\mathrm{X = [O],Y = NO,A = {O_2},B = {O_3}}$$
B
$$\mathrm{X = {N_2}O,Y = [O],A = {O_3},B = NO}$$
C
$$\mathrm{X = {1 \over 2}{O_2},Y = N{O_2},A = {O_3},B = {O_2}}$$
D
$$\mathrm{X = NO,Y = [O],A = {O_2},B = {N_2}{O_3}}$$
2
JEE Main 2023 (Online) 24th January Evening Shift
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Correct statement is :

A
An average human being consumes more food than air
B
An average human being consumes 100 times more air than food
C
An average human being consumes nearly 15 times more air than food
D
An average human being consumes equal amount of food and air
3
JEE Main 2023 (Online) 24th January Morning Shift
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Which of the following is true about freons?

A
These are radicals of chlorine and chlorine monoxide
B
These are chemicals causing skin cancer
C
All radicals are called freons
D
These are chlorofluorocarbon compounds
4
JEE Main 2022 (Online) 29th July Morning Shift
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Which among the following pairs has only herbicides?

A
Aldrin and Dieldrin
B
Sodium chlorate and Aldrin
C
Sodium arsinate and Dieldrin
D
Sodium chlorate and sodium arsinite
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