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

Men residence time of methane in atmosphere in years is:

A. 1-7

B. 2-7

C. 3-7

D. 4-7

The disposal of domestic refuse, commercial and industrial solid wastes are studied under the title

A. Solid waste management

B. Waste management

C. Solid management

D. Semisolid management

Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as

A. environment

B. hydrosphere

C. pollutant

D. biosphere

The reason of acid rains is

A. Release of CO in excess by in complete combustion

B. Excess release of NO₂and SO₂from buring of fossil fules

C. Formation of excess CO₂due to combustion and respiration

D. Formation of NH₃in excess from industry and coal gas

Ecosystem is a smaller unity of

A. Nydosphere

B. Biosphere

C. Lithosphere

D. Attmosphere

The range of UV-B is:

A. 320 to 400 nm

B. 200 to 280 nm

C. 280 to 320 nm

D. 50 to 400 nm

Lanthanides an actinides belong to following group of periodic table:

A. IB

B. VIIIB

C. IIB

D. IIIB

Ozone is present in layer around earth:

A. atmosphere

B. tropospher

C. stratosphere

D. thermosphere

Water is considered pollutant when value of Do is

A. 6 PPM

B. 8 PPM

C. 03 PPM

D. 10 PPM

Major cause of SO2 on global scale is

A. Volcanoes

B. Electric sparks

C. Combustion

D. All

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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

Chose a point which is not included in the components of environment

Which factor is helping to reduce the environmental pollution

Which of the following is not a heavy industry?

The eleventh concentration of metal cause clogs of gills in fish:

Chemicals used to kill insects are:

Detergents are surfactants and they reduce the

The morality of the solution containing x grams ammonium sulfate in 500cm3 of the solution is 0.6 what is x?

Which is not the affect of polluted air on environment

Detergent greatly effects the

Choose the chief air pollutant among the following which depletes ozone layer

Which is property of CO?

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

Natural water is

What is the effect of polluted air on environment

The overall effect of the photochemical smog in the after noon is built up of

The pH range of the acid rain is

Leaching of nutrients is due to

Nitrogen in the atmosphere is:

The pH rain of acid rain is

Sea gets polluted bu accidental oil spills and

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

Set 1

Set 2

Set 3

Set 4

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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: