MDCAT Chemistry Chapter 21 MCQ Test With Answer for (Environmental Chemistry)

Chapter 21 is an important part of MDCAT Chemistry that covers polymers and biological macromolecules. It includes the formation and uses of addition polymers like polyethene, polystyrene, and polyvinyl chloride (PVC), as well as condensation polymers such as polyesters (terylene) and polyamides (nylon-6,6). Understanding these topics helps students grasp how small molecules combine to form large, useful materials found in everyday life.

This chapter also explains the structure of proteins , including their primary and secondary structures , and the structure and function of nucleic acids (DNA) , which carry genetic information. By attempting the MDCAT Chemistry Chapter 21 MCQ Test with Answers , students can review key concepts, check their understanding, and strengthen their preparation for the exam.

MCQ's Test For MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

Try The MCQ's Test For MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

  • Total Questions20

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MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

00:00
Question # 1

Which is not the condition for the formation of smog

Question # 2

Elevated concentration of ______________ is harmful for fish as it clog the gills causing suffocation

Question # 3

Hydrocarbons, SO2, CO, NH3nitrogen oxides and compounds of fluorine are called

Question # 4

Fungicides are the pesticides which

Question # 5

The smog having high contents of SO2is

Question # 6

Property due to which water acts as a universal solvent is

Question # 7

Ozone is produced in regions:

Question # 8

Which is the following is true about galvanic cell:

Question # 9

How can heavy metal contamination like the presence of Hg or Pb may be removed from the soil

Question # 10

The main pollutant of leather in the waste water is due to the salt of:

Question # 11

Alkali metals react viotlently with halogens:

Question # 12

Temporary hardness can be removed by adding

Question # 13

Ozone is a gas having boiling point

Question # 14

Synthetic organic pesticides formulated nowadays are more then:

Question # 15

The yellow color present in the photo chemical smog is due to presence of the

Question # 16

When chlorofluoro carbon are subjected to U.V they form

Question # 17

Exhaust fumes of cars contain which poisonous gas

Question # 18

BOD means

Question # 19

The rigid rocky part of earth crust called lithosphere extends upto a depth of:

Question # 20

It is a biodegradable pollutant

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MCAT Chemistry Chapter 21 Important MCQ's

Sr.# Question Answer
1 Which of the following waster material is not recycled for use again
A. paper
B. plastic
C. hides of animals
D. glass
2 The amount of Si in the lithosphere is about
A. 27.72%
B. 30.35%
C. 35.30%
D. 40.21%
3 How much quantity of water is in the domestic use
A. 0.08%
B. 16%
C. 24%
D. 90%
4 Coal contains percentage of sulphur:
A. 1-9%
B. 5-9%
C. 6-9%
D. 7-9%
5 An excellent source of energy without causing pollution is
A. Fossil fuel
B. Sun
C. Petroleum
D. Nuclear reactor
6 A single chloride free radical of CFCs can destroy upto ozone molecules:
A. 10
B. 100
C. 1000
D. 100000
7 Transportation causes to produce CO2 in atmosphere:
A. 72%
B. 73%
C. 74%
D. 75%
8 Coal contains sulphur in it:
A. 1-3%
B. 1-6%
C. 1-9%
D. 1-12%
9 Unit of ozone is?
A. Debye
B. Dobson
C. Esu
D. Coulumb
10 The suspended particles in the raw water can be removed by the
A. Coagulation
B. Aeration
C. Hydration
D. Dehydration

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