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	Leachate contains:	A. fatty acids B. Bacteria C. Heavy metals D. All of these
2	In the atmosphere, O₂is about	A. 10% B. 15% C. 21% D. 25%
3	Which one of the following is not a component of environment	A. Biosphere B. Stratosphere C. Hydrosphere D. Lithosphere
4	A single chlorine free radical can destory how many ozone molecules	A. 10 B. 100 C. 1000 D. 10000
5	Ozone is most of the tropical regions acts as a pollutant and causes	A. Damages to eyes B. Aggravates asthma C. Chest discomfort D. All of these
6	Solid waster of the city is disposed off by dumping in a landfill. Which of the following gas is produced in the landfill	A. Oxygen B. Chlorine C. Hydrogen sulphide D. Hydrogen chloride gas
7	Water is made disinfectant during purification of water to the step:	A. aeration B. coagulation C. chlorination D. treatment
8	The bonding occurs among polar covalent molecules containing H and one of the small electronegative element such as O,F or N is called:	A. Ionic bonding B. Metallic bonding C. Bridge bonding D. H-bonding
9	The eleventh concentration of metal cause clogs of gills in fish:	A. Al B. He C. Pb D. Ca
10	Electropositive character increases down the groups due to:	A. Increase in atomic size of the elements B. Decrease in ionization potential C. Decreases in electromagnetically of the element D. All the above

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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

Eleven elements made part of earth mass:

An excellent source of energy without causing pollution is

Hard water can block radiators due to formation of

Water is purified by:

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

Leachate contains:

Commonly used coagulants are ions of:

Which gas is not a constituent of atmosphere?

A single chloride free radical can destroy the ozone molecules

Ph of unpolluted rain water is

In Purification of potable water the coagulant used is

Which one of the following does not act as pollutant

Ozone gas has boiling point:

A chemist says that glass must be a super cooled liquid. the reason that he might have in his mind is that glass has:

Water cover earth surface more than:

Which of following is primary pollutants

Main cause of reducing map is:

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

Primary pollutants are:

The Catalyst used in the contact tower for the manufacture of H2SO4 is easily poisoned by:

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

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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 Catalyst used in the contact tower for the manufacture of H₂SO₄ is easily poisoned by: