CBSE Class 8 Science Coal and Petroleum Assignment Set B

CBSE Class 8 Science - Coal and Petroleum (2)

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1.Which organization is associated to advise people how to save petrol and diesel?

2.Liquefied Petroleum Gas is:

(A) A mixture of butane, ethane and propane gases.

(B) Obtained as a by-product during refining of petroleum.

(C) Liquefied under high pressure so that it can be stored and transported in cylinders.

(D) All of these.

3.What are the natural recourses?

4.Which natural resource is also called 'Black Gold'?

(A) Coal. (B) Natural gas. (C) Petroleum. (D) Coal tar.

5.The gas which is known as marsh gas and has the molecular formula CH4 is:

(A) Ethane. (B) Methane. (C) Propane. (D) Butane.

6.The process of separating the various constituents of petroleum is called:

(A) Ionization. (B) Carbonization. (C) Refining. (D) Lubrication.

7.The substances obtained from petroleum and natural gas are termed as:

(A) Chemicals. (B) Petrochemicals.. (C) Fuels. (D) Fossil fuels.

8.Which petrochemical is used for making ointments and Vaseline?

(A) Bitumen. (B) Lubricating oil. (C) Paraffin wax. (D) Diesel.

9.Which one is the man-made resource?

(A) Air. (B) Water. (C) Solar Energy. (D) None of these.

10.Exhaustible natural resources are-

(A) Coal. (B) Petroleum. (C) Natural gas. (D) a, b and c.

11.Which one is the natural resource?

(A) Wood. (B) Cow dung cake. (C) a and b. (D) Air.

12.Which fuel was used in railway engines to produce steam to run the engine?

(A) Coal. (B) Coke. (C) Coal gas. (D) Coal tar.

13.Fuels can be classified as:

(A) Combustible, Non-combustible. (B) Solid, Liquid or Gaseous.

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