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General Knowledge :: Chemistry

  1. The natural resource, known as black gold is

  2. A.

     Coal

    B.

     Lead

    C.

     Tin

    D.

     Platinum


  3. The chief constituent of natural gas is:

  4. A.

     Methane

    B.

     Helium

    C.

     Nitrogen

    D.

     Propane


  5. The resources which can be used continuously, year-after-year are called

  6. A.

     Biotic

    B.

     Abiotic

    C.

     Non-renewable

    D.

     Renewable


  7. The highest volume of gases in lower atmosphere is comprised of

  8. A.

     Hydrogen

    B.

     Carbon dioxide

    C.

     Oxygen

    D.

     Nitrogen


  9. What is the maximum Water Vapour content in the atmosphere?

  10. A.

     2 to 3 per cent

    B.

     3 to 4 per cent

    C.

     4 to 5 per cent

    D.

     5 to 6 per cent


  11. Which of the process is known as nitrification?

  12. A.

     Reaction of Nitrogen Monoxide with oxygen to form nitric acid

    B.

     Reaction of nitrogen dioxide with water to form nitric acid

    C.

     Conversion of ammonia to nitrites

    D.

     Conversion of nitrite to nitric oxide


  13. Which is not a green house gas ?

  14. A.

     CO2

    B.

     CH4

    C.

     N2O

    D.

     Chlorofluorocarbons


  15. Formation of ozone hole is maximum over

  16. A.

     Africa

    B.

     India

    C.

     Antarctica

    D.

     Europe


  17. Ozone saves the biosphere by absorbing high energy radiations called ________ .

  18. A.

     Infra-red (IR)

    B.

     Gamma rays

    C.

     Ultraviolet rays (UV)

    D.

     X–rays


  19. Which one of the following is not a cause for present global warming and climate change ?

  20. A.

     CFC emission

    B.

     Carbon dioxide emission

    C.

     Deforestation

    D.

     Methane emission