List of top Chemistry Questions on Environmental Chemistry

Identify the incorrect pair from the following:

Which of these reactions is not a part of breakdown of ozone in stratosphere?

Formation of photochemical smog involves the following reaction in which $A , B$ and $C$ are respectively i $NO _2 \xrightarrow{ h\nu } A + B$ ii $B + O _2 \rightarrow C$ iii $A + C \rightarrow NO _2+ O _2$ Choose the correct answer from the options given below:

Which of the following free radicals helps in depletion of the ozone layer?

In which of the following cities photochemical smog is minimum?

Consider the following:

D.D.T.
Aldrin
Sodium arsenite
Sodium chlorate

How many of these are pesticides?

The concentration of dissolved Oxygen in water for growth of fish should be more than 𝑋 ppm and Biochemical Oxygen Demand in clean water should be less than 𝑌 ppm. X and Y in ppm are, respectively.

Photochemical smog found mainly in

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 ligth of the above statements , choose the correct answer from the options given below:

Which one of the following gases converts haemoglobin into carboxy haemoglobin ?

Earth’s atmosphere is richest in

Match the following List-I and List-II:

List-I	Industry	List-II	Waste Generated
(A)	Steel Plants	(I)	Gypsum
(B)	Thermal Power Plants	(II)	Fly ash
(C)	Fertilizer industries	(III)	Slag
(D)	Ppaer mills	(IV)	Bio-degradable Wastes

Choose the correct answer from the options given below: