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

00:00
Question # 1

Which is the following is true about galvanic cell:

Question # 2

Dissolved impurities of potable water can be separated by the process of

Question # 3

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

Question # 4

Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water

Question # 5

The morality of the solution containing x grams ammonium sulfate in 500cm3 of the solution is 0.6 what is x?

Question # 6

Which of the following is not the required condition for the formation of smog

Question # 7

How much quantity of total water is available as fresh water

Question # 8

For incineration temperature range is (in oC)

Question # 9

One of the environmental problem is the formation of oil slicks when oil is spilled form tankers in sea water. Which treatment is suitable to remove oil slicks

Question # 10

Fresh water of total earth water is:

Question # 11

Surface and ground water sources are contaminated by various human activities. Which of the following is not human activity that causes contamination in fresh water

Question # 12

Which is unnecessary for purification of water for drinking purposes

Question # 13

Ozone in most of the tropical regions acts as a pollutant and cause

Question # 14

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg Toxic.

Question # 15

Atmosphere consists of gasses:

Question # 16

The ozone depletion in the stratophere is mainly due to the reaction of ozone with

Question # 17

The pH range of acid rain is?

Question # 18

Ozone acts as:

Question # 19

Ozone is most of the tropical regions acts as a pollutant and causes

Question # 20

Incineration is a process in which solid waste is burned at high temperature ranging from

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MCAT Chemistry Chapter 21 Important MCQ's

Sr.# Question Answer
1 Chose a point which is not included in the components of environment
A. Stratosphere
B. Hydrosphere
C. Lithosphere
D. Biosphere
2 Volcanoes produce SO2:
A. 47%
B. 57%
C. 67%
D. 77%
3 Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water
A. SO2
B. NO2
C. CO
D. a and b only
4 Pathogens in raw water are killed in step:
A. aeration
B. coagulation
C. chlorination
D. treatment
5 Biochemical oxygen demand (BOD) is the capacity of organic matter in natural water to consume oxygen with in a period of
A. 2 day
B. 6 day
C. 5 day
D. 7 day
6 Which heavy metals do not have any safe limits
A. As
B. Hg
C. Cr
D. All of these
7 99.5% mass of lithosphere is made of
A. 03 elements
B. 8 elements
C. 11 elements
D. 15 elements
8 Many petroleum products are:
A. coloured
B. colourless
C. testy
D. poisoinous
9 An excellent source of energy without causing pollution is
A. Fossil fuel
B. Sun
C. Petroleum
D. Nuclear reactor
10 Leather tanneries use big auantities of:
A. Cr Vi salts
B. Cr III salts
C. Mn-salts
D. Pb-salts

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