MDCAT Chemistry Chapter 21 online mcq test with answers for chapter 21 (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.

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MCAT Chemistry Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	Why is carbon monoxide called as pollutant? The reason is that	A. It combines with oxygen B. It combines with haemoglobin C. It inactivates glycolysis D. It inactivates nerves
2	Water is considered pollutant when value of Do is	A. 6 PPM B. 8 PPM C. 03 PPM D. 10 PPM
3	Diseases like dysentery, typhoid and hepatitis are caused by mixing of in water:	A. Live stock wastes B. Oil spilage C. detergents D. pesticides
4	Ozone is usually produced in the	A. South polar region B. North pole region C. Tropical region D. Thermosphere zone
5	The respiration process taking place in animals depends on a difference in	A. Partial pressure B. Osomotic pressure C. Vapour pressure D. Atomospheric pressure
6	BOD is the oxygen demand with in day(s):	A. Four B. Two C. Three D. Five
7	Ozone is effectively removed by	A. TNT B. CFCs C. PVC D. CNG
8	The most important pesticides are:	A. Herbicides B. Insecticides C. Fungicides D. All
9	Water is essential for life on	A. Moon B. Space C. Earth D. Sun
10	Hardness which can be removed by boiling is called	A. Permanent hardness B. Temporary hardness C. Stiffness D. Toughness

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

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

MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test

The gases in the atmosphere are essential for sustaining life on earth. Thus oxygen is required for breathing. What for is carbon dioxide required

A single chlorine free radical can destroy how many ozone molecules

Transformation is a cyclic process in which used plactic is

Which of the following is a macronutrient?

Property due to which water acts as a universal solvent is

White marble buildings are effected by?

Reason of pollution are:

SO2and NO2cause pollution due to increase in

COD of water can be measured by

The amount of oxygen in the lithosphere is about

Ecosystem is a smaller unit of

Water cover earth surface more than:

Which gases are produced from landfills?

Ozone layer is high:

Which is not an air pollutant

Chemical equilibrium involving reactants and products in more than one phase is called:

Why a C- C bond breaks by uv light

Coal contains sulphur in it:

Hydrosphere includes

Ozone is usually produced in the

Prepare Complete Set Wise MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQs Online With Answers

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Top Scorers Of MDCAT Chemistry Chapter 21 Environmental Chemistry Online Test MCQ`s Test

MCAT Chemistry Chapter 21 Important MCQ's

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SO₂and NO₂cause pollution due to increase in