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

Polar ice caps and glaciers consists total earth water:

A. 1%

B. 2%

C. 3%

D. 4%

Which of following is primary pollutants

A. N₂O

B. PAN

C. H₂SO₄

D. None of these

Water in swimming pools is purified by adding

A. Sodium

B. Chlorine

C. Phosphorus

D. Potassium

Coal contains percentage of sulphur:

A. 1-9%

B. 5-9%

C. 6-9%

D. 7-9%

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

A. Blow air

B. Add Na₂CO₃

C. Use a specially made sorbent having fluorine trapped in it

D. Use a sorbent having Al₂O₃trapped in it

A large hole in the ozone layer over antarctica region was discovered in:

A. 1960s

B. 1970s

C. 1980s

D. 1990s

Sulphate aerosols cause severe respiratory problems particularly among

A. Infants

B. Women

C. Young people

D. Old people

Oceans cove ____________ percent of the surface of the earth

A. 60

B. 70

C. 80

D. 97

Which of the following is not a secondary pollutant

A. Ozone

B. Carbonic acid

C. Sulphuric acid

D. Carbon dioxide

Carbon Monoxide is:

A. colouriess

B. orderless

C. high toxic

D. All of these

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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

Leachate contains:

Water cover earth surface more than:

The concentration of dissolved molecular oxygen in water which acts as the most important oxidizing agent ranges from

Which of the following is not the required condition for the formation of smog

The pH rain of acid rain is

Ecology is a science of environment and deals specially with

A single chlorine free radical can destroy how many ozone molecules

Sulphate aerosols cause severe respiratory problems particularly among

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

The words smog is a combination of smoke and:

99.5% mass of lithosphere is made of

How much pesticides have been synthesized at present?

Boron, aluminium, gallium, indium and thallium belong to group lll-A of the periodic table show a decrease with increasing relative atomic mass:

Hydrocarbons, SO2, CO, NH3nitrogen oxides and compounds of fluorine are called

Volcanoes produce SO2:

Acidification of soil can leach metal:

Which heavy metals do not have any safe limits

The amount of Si in the lithosphere is about

Lithosphere has amount of silicon

SO2 produced by volcanoes is about

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

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Set 6

Set 7

Set 8

Set 9

Set 10

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

Hydrocarbons, SO₂, CO, NH₃nitrogen oxides and compounds of fluorine are called

Volcanoes produce SO₂:

SO₂produced by volcanoes is about