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Question-1
Which of the following oxides are released from industry and which dissolve in rain water to produce 'acid rain'?
(A)
Nitrogen and Sulfur
(B)
Nitrogen and Silicon
(C)
Nitrogen and Phosphorous
(D)
Nitrogen and Selenium
Question-2
Percentage of carbon dioxide content in the atmosphere.
(A)
0.05
(B)
0.01
(C)
0.02
(D)
0.04
Question-3
Burning of petrol containing which of the following releases this toxic metal into the environment and can cause serious health hazards?
(A)
Chromium
(B)
Tin
(C)
Lead
(D)
Selenium
Question-4
Which of the following is caused by gases in the air, chiefly carbon dioxide and methane?
(A)
Photochemical smog
(B)
Acid rain
(C)
Global warming
(D)
Denitrification
Question-5
Pollution in car exhausts can be controlled by using:
(A)
Fractional distillation
(B)
Catalytic converters
(C)
Scrubbers
(D)
Microstrainers
Question-6
By how much percentage is the amount of fresh water on the earth less than that of the total?
(A)
2
(B)
5
(C)
3
(D)
4
Question-7
Which of these renewable resource is used to generate electricity?
(A)
Wind energy
(B)
Hydel energy
(C)
Solar power
(D)
All of the above
Question-8
Which of the following produces carbon dioxide when it is heated in industry and when it moves back below the Earth's crust?
(A)
Ore
(B)
Fossil fuel
(C)
Sediments
(D)
Limestone
Question-9
Which of the following statements is true?
(A)
Since the gases in the air possess different melting point, they can be separated using the fractional distillation method .
(B)
Since the gases in the air possess different freezing point, they can be separated using the fractional distillation method .
(C)
Since the gases in the air possess different boiling point, they can be separated using the fractional distillation method .
(D)
Since the gases in the air possess different density, they can be separated using the fractional distillation method .
Question-10
With which of the following alkaline substance is acid gases from power stations passed through to make the escaping gases much less harmful?
(A)
Lime
(B)
Sodium hydroxide
(C)
Water
(D)
Aluminium hydroxide
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Cambridge Secondary Grade 9
IGCSE
Practice in Related Chapters
Nature of Matter
Elements and Compounds
Acid,Base and Salts
Quantitative Chemistry
How far? How fast?
Patterns and properties of Metals
Planet Earth
Introducing Chemistry
Mixtures and Separating Techniques
Particle Theory
Periodic Patterns
Chemical Change
Chemical Analysis and Experimentation
Patterns and Properties of Non-metals
Petrochemicals and Polymers
Industrial Inorganic Chemistry
Organic Chemistry
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