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.

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

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Meer Sadeed 07 - Sep - 2023 10 Min 50 Sec 13/20
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Rana Ubaid Chohan 16 - Jul - 2022 10 Min 50 Sec 13/20

MCAT Chemistry Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	Test of incomplete combustion of petrol in the presence of	A. CO₂ B. SO₂ C. NO₂ D. Co
2	Soil remediation means	A. to make it suitable for cultivation of crops B. to make it acidic C. to make it alkeline D. to add manure into it
3	Newspaper can be recycled again and again by how many times?	A. 2 B. 3 C. 4 D. 5
4	Chemicals used to kill herbs are:	A. Herbicides B. Insecticides C. Pesticides D. Fungicides
5	To purify water which has mud dissolved in it, a substance which coagulates the suspended particles is used. The coagulant may be	A. Ag⁺ B. Cu²⁺ C. Al³⁺ D. Si⁴⁺
6	Residence time of methane in the atmosphere is	A. 3 - 7 days B. 2 -3 days C. 3 - 7 years D. 2 - 3 years
7	Which is not the affect of polluted air on environment	A. acid rain B. smog C. ozone D. global warming
8	Nitrogen in the atmosphere is:	A. 78% B. 21% C. 0.9% D. 0.03%
9	The pH range of acid rain is?	A. 7-6.5 B. 6.5-6 C. 6-5.6 D. Less than 5
10	Property due to which water acts as a universal solvent is	A. Polarity B. It's ability to make hydrogen bond C. Both A and B D. Strong dipole dipole interaction

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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 largest item which is recycled is

Which one of the following is an organic compound?

Chemicals used to kill insects are:

Global warming is mainly caused by ______ radiations

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

The branch of chemistry interlinked with biology, physics, medicines, agriculture, public health and sanitary engineering etc. is:

DDT is a:

The % of CO2in the atmosphere is

An excellent source of energy without causing pollution is

Water cover earth surface more than:

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

Petroleum or crude oil is a complex mixture of compounds mainly:

Which factor is helping to reduce the environmental pollution

Which one of the following is used as coagulant for purification potable water

The semi solid wastes in landfills is called:

Which one of the following is not a component of environment

Rigid rocky crust earth upto a depth of 100 km is called:

Ozone gas has boiling point:

The water is considered to be polluted when the concentration of oxygen in it is

Exposure to CO results in

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

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Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

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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

Test Questions

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The % of CO₂in the atmosphere is