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

Amount of ozone in atmosphere is expressed in units:

A. Kilograms

B. cm

C. molarity

D. DU

Photo chemical smog contains ______ as main reactants

A. Nitrons oxide and unburnt hydrocarbons

B. Nilric oxide and unburnt hydrocarbons

C. No and burnt hydrocarbons

D. N₂O and burnt hydrocarbons

The respiration process taking place in animals depends on a difference in

A. Partial pressure

B. Osomotic pressure

C. Vapour pressure

D. Atomospheric pressure

The words smog is a combination of smoke and:

A. fog

B. foke

C. fork

D. fizzy

Air pollution causes

A. Acid rain

B. O₃ depletion

C. Green House Effect

D. All

Ozone is a gas having boiling point

A. Unstable

B. High

C. Low

D. Moderate

A single chlorine free radical can destroy how many ozone molecules

A. 100

B. 100000

C. 10000

D. 10

Components of environment is (in km) around the earth:

A. 10 km

B. 100 km

C. 1000 km

D. 1500 km

Major cause of SO2 on global scale is

A. Volcanoes

B. Electric sparks

C. Combustion

D. All

The layer of gases around the earth are called?

A. Atmosphere

B. Hydrosphere

C. Lithosphere

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

Detergent greatly effects the

Reason of pollution are:

Which not a method for solid waste management>

Depletion of ozone is more during the month:

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

During incineration temperature range of non-rotating chamber is

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will not cause water pollution

Acidification of soil can leach metal:

Polar ice caps can melt due to

Forms of waste products:

Volcanoes produce SO2:

Hydrosphere covers the surface of erath:

Materials suspended in water or present as colloidal form in raw water are removed by:

0.1M HCI having pH =1.0 it is about 100 time stronger than acetic acid what will be the pH of acetic acid:

The pH rain of acid rain is

Heat balance of earth is maintained by sphere:

COD of water can be measured by

Water is made disinfectant during purification of water to the step:

Which is used as a coagulant:

Transformation is a cyclic process in which used plactic is

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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maryam

Alishba

Alishba

Volcanoes produce SO₂: