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 causes water pollution?

Question # 2

Swage water is purified by

Question # 3

Soil remediation means

Question # 4

The amount of oxygen in the lithosphere is about

Question # 5

Acid rains are produced by

Question # 6

Result of ozone hole is

Question # 7

SO2Makes ______ acid rains

Question # 8

Polycyolic aromatic hydrocarbons are taught to be

Question # 9

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

Question # 10

Which is not the affect of polluted air on environment

Question # 11

The region of earth capable of supporting life is

Question # 12

Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

Question # 13

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

Question # 14

Photochemical smog is caused by

Question # 15

In Antarctica ozone depletion is due to the formation of following compound

Question # 16

A pollutant affects

Question # 17

CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy

Question # 18

Ozone depletion in stratosphere shall result in

Question # 19

Which is not the condition for the formation of smog

Question # 20

B.O.D is connected with

Question # 21

Cyclone collector is used for minimizing

Question # 22

Ecology is a science of environment and deals specially with

Question # 23

One of the environmental problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks

Question # 24

Shahi Qilla may be destroyed by

Question # 25

Which one of the following is not air pollutant gas

Question # 26

Which gasses are produced from landfills

Question # 27

Environmental pollution affects

Question # 28

NO and NO2gases in atmosphere are represented by

Question # 29

The % of CO2is the atmosphere is

Question # 30

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

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 In Antarctica ozone depletion is due to the formation of following compound
A. Acrolein
B. Peroxy acetyl nitrate
C. SO2and SO3
D. Chlorine nitrate
2 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
A. Iodine
B. Bromine
C. Lead
D. Carbon
3 Which is not a component of environment
A. Biosphere
B. Lithospahre
C. Hydrosphere
D. None of these
4 B.O.D is connected with
A. Organic matter
B. Microbes
C. Mircrobes and organic matter
D. None of the above
5 The film forming components of paints are
A. Resins
B. Thinners
C. Pigments
D. Driers
6 Which one is not a pollutant normally?
A. Hydrocarbons
B. Carbon dioxide
C. Carbon monoxide
D. Sulphur dioxide
7 Which factor is helping to reduce the environmental pollution
A. Rapid growth of population
B. Urbanization
C. Industrialization
D. Increase of plantation
8 Which causes water pollution?
A. Smoke/fly ash
B. Automobile exhausts
C. Aeroplnes
D. 2,4-D and pesticides
9 Which gasses are produced from landfills
A. NH3
B. H2S
C. N2
D. All of these
10 Which one of the following is not air pollutant gas
A. CO
B. CO2
C. NO
D. SO2

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