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	BOD is the oxygen demand with in day(s):	A. Four B. Two C. Three D. Five
2	Ratio of hydrogen (H) and oxygen (O) in water molecule by volume is	A. 2: 1 B. 1: 2 C. 3: 1 D. 4: 1
3	Which not a method for solid waste management>	A. Landfill B. Incinerating C. Recycling D. None of these
4	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
5	Lithosphere extends upto kilometer of earth crust in depth:	A. 10 km B. 100 km C. 1000 km D. 10000 km
6	Which is not a component of environment?	A. Biosphere B. Lithosphere C. Hydrosphere D. None of these
7	Polycyclic aromatic hydrocarbons are taught to be	A. Disinfectant B. Carcinogenic C. Helpful D. Reactive
8	Which one of the following is not air pollutant gas	A. CO B. CO₂ C. NO D. SO₂
9	Splitting of spectral lines when atoms are subjected to strong electric field is called:	A. Compton effect B. Stark effect C. Zeeman effect D. Photoelectric effect
10	Phenomenon of acid rains gain importance in:	A. 1930s B. 1940s C. 1950s D. 1960s

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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

Increased awareness of environmental issues has led chemists to develop products and processes that do not impact on the environment in terms of pollution or depletion of sources. To help chemist to achieve this aim, some principles are drawn. Which one is not the guiding principle

The normal amount of overhead ozone is about

Industrial effluents have toxic synthetic organic compounds as well as heavy metals like

Ozone is an allotropic form of:

Ph of unpolluted rain water is

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

Ozone layer is

Poisoning of CO can be reveresed by giving oxygen at pressure:

SO2makes ___________ acid rains

Augus smith discovered in the mid of seventeenth century:

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

SO2 produced by volcanoes is about

In big/metropolitan cities, atmosphere is mostly polluted due to

SO2and NO2cause pollution due to increase in

Exhaust fumes of cars contain which poisonous gas

Which of following is primary pollutants

Leaching of nutrients is due to

alum or aluminium sulphate used as coagulant in alkaline medium change into precipitate of radicals of alumimium.

The words smog is a combination of smoke and:

Which one of the following is used as coagulant for purification potable water

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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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SO₂makes ___________ acid rains

SO₂produced by volcanoes is about

SO₂and NO₂cause pollution due to increase in