JEE Main 2023 (Online) 25th January Morning Shift | Environmental Chemistry Question 20 | Chemistry

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JEE Main 2023 (Online) 25th January Morning Shift

MCQ (Single Correct Answer)

-1

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

$$\mathrm{X = [O],Y = NO,A = {O_2},B = {O_3}}$$

$$\mathrm{X = {N_2}O,Y = [O],A = {O_3},B = NO}$$

$$\mathrm{X = {1 \over 2}{O_2},Y = N{O_2},A = {O_3},B = {O_2}}$$

$$\mathrm{X = NO,Y = [O],A = {O_2},B = {N_2}{O_3}}$$

JEE Main 2022 (Online) 29th July Morning Shift

MCQ (Single Correct Answer)

-1

Which among the following pairs has only herbicides?

Aldrin and Dieldrin

Sodium chlorate and Aldrin

Sodium arsinate and Dieldrin

Sodium chlorate and sodium arsinite

JEE Main 2022 (Online) 28th July Morning Shift

MCQ (Single Correct Answer)

-1

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 :

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Statement I is true but Statement II is false

Statement I is false but Statement II is true

JEE Main 2022 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

-1

Given below are two statements:

Statement I : The non bio-degradable fly ash and slag from steel industry can be used by cement industry.

Statement II : The fuel obtained from plastic waste is lead free.

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

Both Statement I and Statement II are correct

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

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