List of top Chemistry Questions on Environmental Chemistry

Two statements are given below: I. In dry cleaning, the solvent \(Cl_2C\) = \(CCl_2\) was earlier used and now it is replaced by liquefied \(CO_2\).
II. In bleaching of paper, \(H_2O_2\) was used earlier and now it is replaced by chlorine gas.
Arrange the following pesticides in the chronological order of their release into the market: A: Organophosphates
B: Organochlorides
C: Sodium chlorate
Which of the following is a lung irritant?

Earth’s atmosphere is richest in

In which of the following cities photochemical smog is minimum?

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: 

What causes poisoning of Carbon Monoxide?
Which one of the following gases converts haemoglobin into carboxy haemoglobin ?
Given below are two statements:
Statement I: If BOD value is 4 ppm and dissolved oxygen is 8 ppm, it is a good quality water.
Statement II: If the concentration of zinc and nitrate is 5 ppm, then it can be used as good quality water.
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.
Which of the following free radicals helps in depletion of the ozone layer?
Consider the following:
  1. D.D.T.
  2. Aldrin
  3. Sodium arsenite
  4. Sodium chlorate
How many of these are pesticides?

Photochemical smog found mainly in 

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 these reactions is not a part of breakdown of ozone in stratosphere?
Match the following List-I and List-II:
List-IIndustryList-IIWaste 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:
Correct statement about smog is
Photochemical smog pollutants cannot be reduced by?
$sp^3d^2$ hybridisation is present in

The pollution due to oxides of sulphur gets enhanced due to the presence of:

  1. Particulate matter
  2. Ozone
  3. Hydrocarbons
  4. Hydrogen peroxide.

Choose the most appropriate answer from the options given below:

Which property of CO2 makes it biologically and geo-Chemically important?

Father of green chemistry is?

Which among the following statements is against to the principles of green chemistry?

The primary precursor of photochemical smog that can be metabolised by plants such as Juniparus and Pyrus, is
Match List I with List II.
List I
Pollutant		List II
Source
A. MicroorganismsI. Strip mining
B. Plant nutrientsII. Domestic sewage
C. Toxic heavy metalsIII. Chemical fertilizer
D. SedimentIV. Chemical factory

Choose the correct answer from the options given below: