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General Knowledge :: Chemistry

  1. Which of the following is a renewable source of energy ?

  2. A.

     Coal

    B.

     Geothermal power

    C.

     Natural gas

    D.

     Uranium


  3. Gobar gas contains mainly :

  4. A.

     Methane

    B.

     Ethylene

    C.

     Propylene

    D.

     Acetylene


  5. Gobar gas mainly contains

  6. A.

     Carbon dioxide

    B.

     Carbon monoxide

    C.

     Hydrogen sulphide

    D.

     Methane


  7. The main constituent of biogas is

  8. A.

     Oxygen

    B.

     Methane

    C.

     Acetic acid

    D.

     Methyl alcohol


  9. An example of replenishable energy source is–

  10. A.

     Coal

    B.

     Petroleum

    C.

     Lignite

    D.

     Biomass


  11. For generation of biogas, the materials commonly used are

  12. A.

     Animal wastes

    B.

     Crop residues

    C.

     Aquatic plants

    D.

     Forest residues


  13. The main constituent of natural gas is

  14. A.

     Methane

    B.

     Ethane

    C.

     Butane

    D.

     Propane


  15. Which of the following is biodegradable ?

  16. A.

     Paper

    B.

     D.D.T.

    C.

     Aluminium

    D.

     Plastic


  17. Which of the following is a commercial source of energy?

  18. A.

     Agricultural waste

    B.

     Dried dung

    C.

     Sun

    D.

     Natural gas


  19. Which of the following is not a commercial source of energy?

  20. A.

     Coal

    B.

     Petroleum

    C.

     Natural Gas

    D.

     Firewood