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Coal And Petroleum Worksheet

            Objective Type Questions 

  1. Match the objects in Column A with appropriate characteristics given in column B:

  2. Fill in the blanks:
    (a) Separation of different constituents of petroleum is called ___________.
    (b) The major component of CNG is ___________.
    (c) ___________ is the most inferior and softest form of coal.
    (d) Natural gas, petroleum and coal are ___________.
    (e) The process of separating the various constituents/fractions of petroleum is known as __________.
    (f) Natural gas mainly consists of methane with small quantities of __________and___________.

  3. Complete the following crossword based on names of constituents of petroleum by using following information:
    (a) Used in surfacing of roads
    (b) Used as fuel for heavy motor vehicles.
    (c) Used for lubrication
    (d) Used as solvent for dry cleaning
    (e) Used as fuel for lamps 

  4. State whether the following statements are true or false. In case of false statement, write the correct one.
    (i) Coal tar is a tough, porous and black substance which is almost a pure form of carbon.
    (a) True
    (b) False

    (ii) The great advantage of petroleum is that it can be used directly for burning in homes and factories where it can be supplied through pipes.
    (a) True
    (b) False

    Multiple Choice Questions

  5. Air is a natural resource and cannot be exhausted by human activities. It is known as inexhaustible natural resource. Which of the following is another inexhaustible natural resource?
    (a) Coal
    (b) Petroleum
    (c) Sunlight
    (d) Minerals

  6. Coal is processed in industries to get some useful products. Which of the following is not obtained from coal?
    (a) Coke
    (b) Coal tar
    (c) Coal gas
    (d) CNG

  7. Which of the following is obtained from coal tar?
    (a) Petrol
    (b) Coke
    (c) Air
    (d) Naphthalene balls

  8. Conversion of dead vegetation into coal is called
    (a) Carbonisation
    (b) Distillation
    (c) Coal gas
    (d) Natural gas

  9. The below picture shows how petroleum and natural gas are extracted through drilling rig. What must be the reason that petroleum layer exist between sea water level and natural gas?

    (a) Because different types of rock layers separate them.
    (b) Because rocks only allow sea water to pass through it.
    (c) Because petroleum oil releases natural gas that forms a new layer over petroleum oil.
    (d) Because gas and petroleum oil are lighter than sea water and these substances do not mix.

  10. The given picture shows three ancient areas which depicts the formation of fossil fuels

    Which of the following statements are supported by the picture?

    Case Study Questions

  11. All those obtained from nature are called natural resources. In the light of the availability of various resources in nature, natural resources can be broadly classified into two kinds: Inexhaustible Natural Resources and Exhaustible Natural Resources: Some exhaustible natural resources like coal, petroleum and natural gas. These were formed from the dead remains of living organisms.

    (a) What is meant by fossil fuels? Name any two.
    (b) What is meant by exhaustible resources?
    (c) What is meant by inexhaustible resources?
    (d) Some natural resources are given below. Classify them into the exhaustible and inexhaustible natural resources.
    Coal, air, natural gas, petroleum, sunlight, minerals, forests, oxygen.

  12. About 300 million years ago the earth had dense forests in low lying wetland areas. Due to natural processes, like flooding, these forests got buried under the soil. As more soil deposited over them, they were compressed. The temperature also rose as they sank deeper and deeper. Under high pressure and high temperature, dead plants got slowly converted to coal. Coal is processed in industry to get some useful products such as coke, coal tar and coal gas.
    (a) What is meant by coke? Give its uses.
    (b) What is meant by coal tar? Give its uses.
    (c) What is meant by coal gas? Give its uses.

    Subjective Questions

  13. The substance Q is a fossil fuel. It occurs deep below the ground in certain areas of earth. Another fossil fuel P is found trapped above the deposits Q. When Q is subjected to the process R the number of products are collected at different temperature ranges which are put to different uses, a special grade of product S obtained in this way is used as aviation fuel in jet airplanes.
    (i) What are Q and P?
    (ii) What are physical states of Q and P.
    (iii) Name the process R.
    (iv) Name the product S.

  14. Distinguish between coal and coke. 

  15. Comment: None of the fuel can be termed as clean fuel. 

  16. Classify the fuels on the basis of their physical state. 

  17. Sagar visited coal mining place nearby with his father and asked his father how and why this coal is found so deep under earth surface. Help him to understand the coal forming process. 

  18. Write a short note on petroleum.

    Assertion Reasoning Questions

    Below questions consist of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below: 

  19. Assertion (A): Natural gas is an exhaustible fossil fuel.
    Reason (R): Because it is easy to transport through pipes.

  20. Assertion (A): Petroleum is called black gold.
    Reason(R): Petroleum has great commercial importance.

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