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1
JEE Main 2023 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
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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
2
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
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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
3
JEE Main 2022 (Online) 29th July Morning Shift
MCQ (Single Correct Answer)
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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
4
JEE Main 2022 (Online) 28th July Morning Shift
MCQ (Single Correct Answer)
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Given below are two statements:

Statement I : In polluted water values of both dissolved oxygen and $$\mathrm{BOD}$$ are very low.

Statement II : Eutrophication results in decrease in the amount of dissolved oxygen.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
Both Statement I and Statement II are true
B
Both Statement I and Statement II are false
C
Statement I is true but Statement II is false
D
Statement I is false but Statement II is true
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