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

  • Time Allowed20

MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

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Question # 1

Newspapers can be recycled again and again by how many times

Question # 2

Many petroleum products are:

Question # 3

What is the effect of polluted air on environment

Question # 4

Polycyclic aromatic hydrocarbons are taught to be

Question # 5

Transformation is a cyclic process in which used plactic is

Question # 6

Part of fresh water consumed in domestic purpose:

Question # 7

The incineration may reduce volume of wastes upto:

Question # 8

COD of water can be measured by

Question # 9

Ecosystem is a smaller unit of

Question # 10

Factors affecting quality of water:

Question # 11

During incineration temperature range of non-rotating chamber is

Question # 12

Which factor is helping to reduce the environmental pollution

Question # 13

The respiration process taking place in animals depends on a difference in 

Question # 14

Which of the following is not a heavy industry?

Question # 15

The cause of minamata disease is the pollution of

Question # 16

Chose a point which is not included in the components of environment

Question # 17

Pathogens in raw water are killed in step:

Question # 18

Phenomenon of acid rains gain importance in:

Question # 19

The most important pesticides are:

Question # 20

Leachate contains:

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MCAT Chemistry Chapter 21 Important MCQ's

Sr.# Question Answer
1 Oceans, rivers, streams, leaks, polar ice caps, glaciers and group water reservoirs are included in
A. Atmosphere
B. Lithosphere
C. Hydrosphere
D. Biosphere
2 Which one of the pollutants of automobile exhausts affects the nervous system or produces mental diseases
A. NO2
B. SO2
C. Hg
D. Pb
3 Hardness which can be removed by boiling is called
A. Permanent hardness
B. Temporary hardness
C. Stiffness
D. Toughness
4 The morality of the solution containing x grams ammonium sulfate in 500cm3 of the solution is 0.6 what is x?
A. 39.6
B. 40.5
C. 42.7
D. 45.1
5 Part of fresh water consumed in industry is:
A. 1%
B. 2%
C. 69%
D. 23%
6 Which factor is helping to reduce the environment pollution
A. rapid growth population
B. urbanization
C. idustrialization
D. increase of plantation
7 Splitting of spectral lines when atoms are subjected to strong electric field is called:
A. Compton effect
B. Stark effect
C. Zeeman effect
D. Photoelectric effect
8 Chromium (VI) is highly toxic and can cause
A. Blindness
B. Cancer
C. Liver problems
D. Blood problems
9 A single chloride free radical of CFCs can destroy upto ozone molecules:
A. 10
B. 100
C. 1000
D. 100000
10 Which is the following is true about galvanic cell:
A. Reduction occurs at cathode
B. Reduction occurs at anode
C. Anode is negatively charged
D. Chathode is positively charged

Test Questions

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  • maryam

    maryam

    29 Jul 2019

    all answers given are wrong

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  • Alishba

    Alishba

    15 Feb 2019

    The mcqs are not according to syllaybs

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  • Alishba

    Alishba

    15 Feb 2019

    The mcqs are not according to syllaybs

    Like
    Reply