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	Which is not a component of environment?	A. Biosphere B. Lithosphere C. Hydrosphere D. None of these
2	Ozone gas has boiling point:	A. Low B. High C. Medium D. Highest
3	Which is the most toxic among the given?	A. heavy metals B. non-metals C. Metals D. Metalloids
4	The eleventh concentration of metal cause clogs of gills in fish:	A. Al B. He C. Pb D. Ca
5	Biological oxygen demand (BOD) is associated with	A. Organic matter B. Micro organisms C. Both a and b D. None
6	Elevated concentration of ______________ is harmful for fish as it clog the gills causing suffocation	A. AI B. Hg C. As D. Cr(vi)
7	What is the morality of a solution containing 15g of urea is 500cm³ of solution?	A. 1M B. 0.5M C. 2M D. 1.5M
8	The yellow color present in the photo chemical smog is due to presence of the	A. Carbon dioxide B. Nitrogen dioxide C. Chlorine D. All
9	Polar ice caps can melt due to	A. Acid rain B. Green House Effect C. Smog D. Chlorofluorocarbons
10	How much quantity of water is in the domestic use	A. 0.08% B. 16% C. 24% D. 90%

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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

For incineration temperature range is (in oC)

Transportation causes to produce CO2 in atmosphere:

Lead pollution is mainly due to

Atmosphere consists of gasses:

Which one of the following does not act as pollutant

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

Newspapers can be recycled again and again by how many times

The layer of earth around the earth is called:

How can heavy metal contamination like the presence of Hg or Pb may be removed from the soil

Hydrosphere includes

Chemical equilibrium involving reactants and products in more than one phase is called:

Diseases like dysentery, typhoid and hepatitis are caused by mixing of in water:

Contamination of Hg comes into surface water from chlor industrial wastes. Why is Hg toxic

Forms of waste products:

Which is not the condition for the formation of smog

The suspended particles in the raw water can be removed by the

SO2makes ___________ acid rains

Ecosystem is a smaller unit of

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

Ozone acts as:

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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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For incineration temperature range is (in ^oC)

Transportation causes to produce CO₂ in atmosphere:

SO₂makes ___________ acid rains

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