ECAT Pre Engineering Chemistry Chapter 27 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry

Try The MCQ's Test For ECAT Chemistry Chapter 27 Environmental Chemistry

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ECAT Chemistry Chapter 27 Environmental Chemistry

00:00
Question # 1

Which of the following is not an air

Question # 2

Ozone hole refers to

Question # 3

Which gasses are produced from landfills

Question # 4

Air pollution is not caused by

Question # 5

Which of the following forms a toxic substance in blood by combing with hemoglobin?

Question # 6

Water which his considered to be safe for human consumption is known as

Question # 7

The normal amount of overhead ozone is about

Question # 8

Mottling of teeth is due to presence of an element in drinking water

Question # 9

The pH of the rain water in areas where acid rain is the cause of pollution may be

Question # 10

Which causes water pollution?

Question # 11

Soil remediation means

Question # 12

Ozone depletion in stratosphere shall result in

Question # 13

Most hazardous metal pollutant of automobile exhaust is

Question # 14

A single chlorine free radical can destroy how many ozone molecules

Question # 15

Which of the following human activities are contaminating surface and ground waters

Question # 16

Ozone layer of stratosphere requires protection from indiscriminate use of

Question # 17

Water pollution is mainly due to

Question # 18

Value of chemical oxygen demand (COD) is a measure of chemically oxidizable matter in water. Which value of COD will indicate more polluted water

Question # 19

SO2and NO2produce pollution by increasing

Question # 20

Shahi Qilla may be destroyed by

Question # 21

As it passes into food chain, the concentration of DDT

Question # 22

Drained sewage has B.O.D

Question # 23

Soil salinity can be measured by

Question # 24

SO2Makes ______ acid rains

Question # 25

Acid rain is due to increase in atmospheric concentration of

Question # 26

DDT is

Question # 27

The 95.5% mass of Lithosphone 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

Question # 28

A pollutant affects

Question # 29

Environmental pollution affects

Question # 30

The film forming components of paints are

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 NO and NO2gases in atmosphere are represented by
A. NO
B. NO4
C. NOx
D. NxOy
2 Which is not a method for solid waste management
A. Landfill
B. Incinerating
C. Recycling
D. None of these
3 Which is not the affect of polluted air on environment
A. Acid rain
B. Smog
C. Ozone
D. Global warming
4 Water pollution is mainly due to
A. Sulphure dioxide
B. Carbon dioxide
C. Oxygen
D. Industrial discharges
5 In the atmosphere, CO2is about
A. 0.01%
B. 0.03%
C. 0.05%
D. 0.09%
6 Ozone hole refers to
A. Hole in ozone layers
B. Reduction in thickness of ozone layer in stratosphere
C. Reduction of thickness of ozone in troposphere
D. Increase concentration of ozone
7 Carbon monoxide is harmful to human beings as it
A. Is carcinogenic
B. Is antagonistic to CO2
C. Has higher affinity for hemoglobin as compared to oxygen
D. Is destructive to O3
8 Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?
A. Fullerences
B. Freons
C. Polyhalogens
D. Ferrocene
9 Spraying of DDT produces pollution of
A. Air
B. Air and water
C. Air and soil
D. Air, water and soil
10 The toxic organic compounds and heavy metals and metalloids results in contamination of
A. Surface water
B. Ground water
C. Both surface and ground water
D. Neither surface nor ground waters

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