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  • Question
  • The variety of coal in which the deposit contains recognisable traces of the original plant material is


  • Options
  • A. bitumen
  • B. anthracite
  • C. lignite
  • D. peat

  • Correct Answer
  • peat 


  • General Science problems


    Search Results


    • 1. The gases used in different types of welding would include

    • Options
    • A. oxygen and hydrogen
    • B. oxygen, hydrogen, acetylene and nitrogen
    • C. oxygen, acetylene and argon
    • D. oxygen and acetylene
    • Discuss
    • 2. Which of the gas is not known as green house gas?

    • Options
    • A. Methane
    • B. Nitrous oxide
    • C. Carbon dioxide
    • D. Hydrogen
    • Discuss
    • 3. The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

    • Options
    • A. Argon
    • B. Xenon
    • C. Helium
    • D. Krypton
    • Discuss
    • 4. Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?

    • Options
    • A. Television
    • B. Refrigerator
    • C. Tube light
    • D. Cooking gas
    • Discuss
    • 5. Which of the following is the lightest metal?

    • Options
    • A. Mercury
    • B. Lithium
    • C. Lead
    • D. Silver
    • Discuss
    • 6. In which of the following activities silicon carbide is used?

    • Options
    • A. Making cement and glass
    • B. Disinfecting water of ponds
    • C. cutting very hard substances
    • D. Making casts for statues
    • Discuss
    • 7. Most soluble in water is

    • Options
    • A. camphor
    • B. sulphur
    • C. common salt
    • D. sugar
    • Discuss
    • 8. Which of the following was to be discovered first in the chromospheres of the sun?

    • Options
    • A. Krypton
    • B. Xenon
    • C. Neon
    • D. Helium
    • Discuss
    • 9. Soda water contains

    • Options
    • A. carbonic acid
    • B. sulphuric acid
    • C. carbon dioxide
    • D. nitrous acid
    • Discuss
    • 10. Which of the following is not an isotope of hydrogen?

    • Options
    • A. Tritium
    • B. Deuterium
    • C. Protium
    • D. Yttrium
    • Discuss


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