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

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MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

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Question # 1

Unit of ozone is?

Question # 2

For incineration temperature range is (in oC)

Question # 3

The cause of minamata disease is the pollution of

Question # 4

The smog having high contents of SO2is

Question # 5

In the atmosphere, O2is about

Question # 6

Water which his considered to be safe for human consumption is known as

Question # 7

Detergents are surfactants and they reduce the

Question # 8

Which not a method for solid waste management>

Question # 9

Which is the most toxic among the given?

Question # 10

The pH range of the acid rain is

Question # 11

Residence time of methane in the atmosphere is

Question # 12

The destructive distillation of coal gives three products. which of following is not the product of destructive distillation of coal?

Question # 13

Which of spectral lines when atoms are subjected to strong electric field is called:

Question # 14

Which one of the following is an organic compound?

Question # 15

The % of CO2in the atmosphere is

Question # 16

Out of total amount of water available for human use is

Question # 17

Fresh water of total earth water is:

Question # 18

Chlorination of water is effective for

Question # 19

Which one is more toxic?

Question # 20

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

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MCAT Chemistry Chapter 21 Important MCQ's

Sr.# Question Answer
1 Lead pollution is mainly due to
A. Metallic pollution
B. Space pollution
C. Acid rain
D. Cd pollution
2 SO2 produced by volcanoes is about
A. 75%
B. 67%
C. 69%
D. 70%
3 Water bodies are included in:
A. Atmosphere
B. Hydrosphere
C. Lithosphere
D. All of these
4 Water in swimming pools is purified by adding
A. Sodium
B. Chlorine
C. Phosphorus
D. Potassium
5 Poisoning of CO can be reveresed by giving oxygen at pressure:
A. low
B. least
C. medium
D. High
6 Which of the following substance is not present in acid rain?
A. Sulphuric acid
B. Nitric acid
C. Sulphurous acid
D. Acetic acid
7 Agriculture consumes part of fresh water:
A. 1%
B. 2%
C. 69%
D. 23%
8 The amount of Si in the lithosphere is about
A. 27.72%
B. 30.35%
C. 35.30%
D. 40.21%
9 How can heavy metal contamination like the presence of Hg or Pb may be removed from the soil
A. by using water spray
B. by blowing air
C. by treating with EDTA and then flushing the heavy metal complex out of the soil
D. by adding CaO
10 Ozone layer is
A. 25 - 28 km high
B. 26 - 29 km high
C. 24 - 27 km high
D. 20 - 28 km high

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