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	The largest item which is recycled is	A. newspaper B. plastic C. aluminium D. oil
2	Sulphate aerosols cause severe respiratory problems particularly among	A. Infants B. Women C. Young people D. Old people
3	A pollutant affects	A. Human affects B. Quality of life C. Functioning of ecosystem D. All of these
4	In the atmosphere, O₂is about	A. 10% B. 15% C. 21% D. 25%
5	Coal contains sulphur in it:	A. 1-3% B. 1-6% C. 1-9% D. 1-12%
6	The scope of environmental chemistry is to study:	A. Source of chemicals B. Transportation of chemicals C. Transportation of toxic chemical D. All of these
7	The most important pesticides are:	A. Herbicides B. Insecticides C. Fungicides D. All
8	Ocean contains part earth's water:	A. 95% B. 96% C. 97% D. 98%
9	The words smog is a combination of smoke and:	A. fog B. foke C. fork D. fizzy
10	Surface and ground water sources are contaminated by various human activities which of the followings is not a human activity that causes contamination in fresh water	A. live stock waste B. oil leaks and spills C. disposal of industrial effluents D. rain

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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

Phenomenon of acid rains gain importance in:

A single chloride free radical can destroy the ozone molecules

99.5% mass of lithosphere is made of

Commonly used coagulants are ions of:

Chromium (VI) is highly toxic and can cause

The bonding occurs among polar covalent molecules containing H and one of the small electronegative element such as O,F or N is called:

Polar ice caps and glaciers consists total earth water:

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy

Which one of the following is not air pollutant gas

Global warming is mainly caused by ______ radiations

In purification of potable water the coagulant used is:

Which is the most toxic among the given?

Which gas produces air pollution?

The temperature of in the incineration of industrial and hazardous waste process has range

The film forming components of paints are

The scope of environmental chemistry is to study:

Chemicals used to kill insects are:

Which of the following is not a secondary pollutant

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

Contamination of water of tanning industries is due to:

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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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