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

When rain is accompanied by a thunderstorm, the collected rain water will have a pH value

Question # 2

Acid rain is due to increase in atmospheric concentration of

Question # 3

Ozone depletion in stratosphere shall result in

Question # 4

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

Question # 5

In incinerating the waste is burnt at

Question # 6

Ozone hole is maximum over

Question # 7

SO2and NO2produce pollution by increasing

Question # 8

Which of the following waste material is not recycled for use again

Question # 9

Cyclone collector is used for minimizing

Question # 10

Which one is the most toxic?

Question # 11

Swage water is purified by

Question # 12

Any substance in the environment which adversely affects the human health and natural functioning of the Ecosystem is known as

Question # 13

Chromium (VI) is highly toxic and can cause

Question # 14

To purify water which has mud dissolved in it, A substance which coagulates the suspended particles is used. The coagulant may be

Question # 15

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

Question # 16

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

Question # 17

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 # 18

In water the most important oxidizing agent is dissolved molecular oxygen which ranges from

Question # 19

Atomospheric pollutant is

Question # 20

Photochemical smog is caused by

Question # 21

The largest item which is recycled is

Question # 22

Which causes water pollution?

Question # 23

In the atmosphere, O2is about

Question # 24

Which one of the following dissolves more rapidly in blood hemoglobin than oxygen?

Question # 25

When chlorofluoro carbon are subjected to U.V. they form

Question # 26

Shahi Qilla may be destroyed by

Question # 27

Drained sewage has B.O.D

Question # 28

Which is not a method for solid waste management

Question # 29

Soil remediation means

Question # 30

SO2Makes ______ acid rains

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ECAT Chemistry Chapter 27 Important MCQ's

Sr.# Question Answer
1 The film forming components of paints are
A. Resins
B. Thinners
C. Pigments
D. Driers
2 Ozone layer of stratosphere requires protection from indiscriminate use of
A. Fungicides, insecticides, bactericides and medicines
B. Aerosols and high flying jets
C. Atomic explosions and industrial wastes
D. Baloons and turbo-prop aeroplanes
3 Increased asthmatic attacks in certain seasons are related to
A. Inhalation of seasonal pollen
B. Eating of seasonal vegetables
C. Low temperature
D. Wet and dry environment
4 Which one is not a pollutant normally?
A. Hydrocarbons
B. Carbon dioxide
C. Carbon monoxide
D. Sulphur dioxide
5 The pH range of the acid rain is
A. 8 - 7
B. 7 - 6.5
C. 6.5 - 6
D. Less than 5
6 The % of CO2is the atmosphere is
A. 3.0%
B. 0.03%
C. 0.3%
D. 0.5%
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 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
9 Increasing skin cancer and high mutation rate are due to
A. Acid rain
B. Ozone depletion
C. CO pollution
D. CO2Pollution
10 Ultraviolet radiation from sun causes a reaction that produces
A. Fluorides
B. Carbon monoxide
C. Sulphur dioxide
D. Ozone

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