MCQ Questions for Class 8 Science: Ch 5 Coal and Petroleum

MCQ Questions for Class 8 Science: Ch 5 Coal and Petroleum

1. Coal, Petroleum and natural gas are examples of
(a) Exhaustible Natural Resources
(b) Inexhaustible Natural Resources
(c) Expensive Resources
(d) None of the above
► (a) Exhaustible Natural Resources

2. What is the common name of petroleum?
(a) Black gold
(b) Yellow gold
(c) Green gold
(d) Blue gold
► (a) Black gold

3. By which of the given processes is coal formed?
(a) Carbonization
(b) Distillation
(c) Vaporization
(d) Evaporation
► (a) Carbonization

4. What does natural gas mainly consist of?
(a) C2H6
(b) CH4
(c) C3H8
(d) C4H10
► (b) CH4

5. When an oil well is drilled through rocks, which of the following comes out first?
(a) Coal gas
(b) Marsh gas
(c) Natural gas
(d) Carbon dioxide
► (c) Natural gas

6. Natural gas is a _____ resource :
(a) non renewable
(b) living
(c) renewable
(d) all the above
► (a) non renewable

7. What does gobar gas produced from animal and plant waste contain?
(a) Ethane
(b) Methane
(c) Propane
(d) Acetylene
► (b) Methane

8. What is the underlying principle based on which fractional distillation is carried out?
(a) Different densities of each fraction
(b) Different molecular weights of each fraction
(c) Different boiling points of each fraction
(d) Different melting points of each fraction
► (c) Different boiling points of each fraction

9. Where does natural gas occur?
(a) Above petroleum oil
(b) Below petroleum oil
(c) Along with petroleum oil
(d) Inside volcanic mountains
► (a) Above petroleum oil

10. A What are the most common sources of energy used in automobiles?
(a) Wood and coal
(b) Petroleum and diesel
(c) LPG and cow dung
(d) Natural gas and coal
► (b) Petroleum and diesel

11. When heated in air, coal burns to produce :
(a) Carbonates
(b) Carbon dioxide gas
(c) Oxygen gas
(d) Chlorofluorocarbons
► (b) Carbon dioxide gas

12. The purest form of carbon is
(a) Coal
(b) Charcoal
(c) Coke
(d) All of these
► (c) Coke

13. Coke is used to manufacture :
(a) coal tar
(b) producer gas
(c) natural gas
(d) biogas
► (b) producer gas

14. Coke is obtained from :
(a) destructive distillation of petroleum
(b) refining of coal
(c) destructive distillation of coal
(d) refining of petroleum
► (c) destructive distillation of coal

15. Fossil fuels are :
(a) renewable resource
(b) formed naturally
(c) formed artificially
(d) non combustible
► (b) formed naturally

16. At the petroleum refinery, crude oil mixture is :
(a) ultrafiltered
(b) filtered
(c) both filtered & ultrafiltered
(d) fractionated
► (d) fractionated

17. When coal burns in air then
(a) Carbon dioxide is formed
(b) Sulphur dioxide is formed
(c) Carbon monoxide is formed
(d) Hydrogen gas is formed
► (a) Carbon dioxide is formed

18. Where is kerosene mainly used?
(a) In laying down roads.
(b) As fuel in jet engines.
(c) In making water proof materials.
(d) In furnaces of industries.
► (b) As fuel in jet engines.

19. Coal was formed during :
(a) Devonian period
(b) Carboniferous period
(c) Silurian period
(d) Carbonian period
► (b) Carboniferous period

20. Coal is classified according to:
(a) its carbon content
(b) time taken in its formation
(c) layer of earth surface it is found
(d) its non carbon content
► (a) its carbon content

21. In fractional distillation of petroleum, where do the vapours with highest boiling point condense?
(a) In the upper-most portion
(b) In the lower-most portion
(c) In the middle portion
(d) Cannot be said
► (b) In the lower-most portion

22. Type of coal that can serve as good heating fuel for domestic purpose is :
(a) bituminous
(b) bauxite
(c) anthracite
(d) lignite
► (c) anthracite

23. Coal gas can be obtained from :
(a) burning coke with petroleum
(b) coal beds & destructive distillation of coal
(c) only fractional distillation of coal
(d) only destructive distillation of coal
► (b) coal beds & destructive distillation of coal

24. By what process is petroleum refined?
(a) Fractional distillation
(b) Destructive distillation
(c) Distillation
(d) All of the above
► (a) Fractional distillation

25. The youngest form of coal is:
(a) litter
(b) peat
(c) anthracite
(d) lignite
► (b) peat

26. PCRA stands for
(a) Public Conservations Research Association
(b) Petroleum Conservation Research Association
(c) Public Council of Research Association
(d) Partial Counting of Remaining Amendment
► (b) Petroleum Conservation Research Association
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