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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Meer Sadeed 07 - Sep - 2023 10 Min 50 Sec 13/20
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MCAT Chemistry Chapter 21 Important MCQ's

Sr.#	Question	Answer
1	Chemicals used to kill fungi are:	A. Herbicides B. Insecticides C. Pesticides D. fungicides
2	The 95.5% mass of Lithoshone is made of 11 elements i,e O₂, Si, Al, Fe, Ca, Na, K, Mg, Ti, H₂and P. Which element is present in trace amount	A. iodine B. bromine C. lead D. carbon
3	Lanthanides an actinides belong to following group of periodic table:	A. IB B. VIIIB C. IIB D. IIIB
4	Ozone layer is	A. 25 - 28 km high B. 26 - 29 km high C. 24 - 27 km high D. 20 - 28 km high
5	Leaching of nutrients is due to	A. Drying of soil B. Combustion of soil C. Acidification of soil D. Neutralization of soil
6	The most important pesticides are:	A. Herbicides B. Insecticides C. Fungicides D. All
7	Proxy acetyl nitrate (PAN) is an irritant to human beings and it affect	A. Nose B. Stomach C. Eyes D. Ears
8	Phenomenon of acid rains gain importance in:	A. 1930s B. 1940s C. 1950s D. 1960s
9	Which one is more toxic?	A. Fe B. C C. Hg D. Ag
10	Chloroform is carcinogenic:	A. Heart B. Lungs C. Liver D. Kidney

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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

The pH range of acid rain is?

Ecosystem is a smaller unity of

Biochemical oxygen demand is the capacity of organic matter in natural water to consume oxygen

Which one of the following does not act as pollutant

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

Chemicals used to kill fungi are:

Fresh water of total earth water is:

SO2and NO2cause pollution due to increase in

Ocean contains part earth's water:

Potable water is considered to be

Coagulation in the purification of water is carried out by

How many times a newspaper can be recycled

Volcanoes produce SO2:

Water cover earth surface more than:

The temperature of in the incineration of industrial and hazardous waste process has range

Coagulation removes suspended particles in ran water:

Hydrosphere covers the surface of erath:

Photo chemical smog contains ______ as main reactants

COD of water can be measured by

The most important pesticides are:

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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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SO₂and NO₂cause pollution due to increase in

Volcanoes produce SO₂: