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  • Question

  • One method by which the components of air can be seperated is


  • Options
  • A. shaking with caustic soda solution
  • B. shaking with water
  • C. fractional distillation of liquid air
  • D. passing air over heated magnesium

  • Correct Answer
  • fractional distillation of liquid air 

    Explanation

    The two main components of air are nitrogen and oxygen. They are seperated by the fractional distillation of liquid air. Liquefied air contains liquid nitrogen and liquid oxygen. Liquid nitrogen with the lower boiling point more readily evaporates than the less volatile liquid oxygen. 

    • More questions

    • 1. First Olympic Games were held in

    • Options
    • A. 876 BC
    • B. 798 BC
    • C. 776 BC
    • D. 898 BC
      • Discuss
    • 2. The minimum age required to become the prime minister of India is


    • Options
    • A. 25 years
    • B. 30 years
    • C. 40 years
    • D. 35 years
      • Discuss
    • 3. India reached the final of the Davis Cup for the first time in...?

    • Options
    • A. 1964
    • B. 1966
    • C. 1970
    • D. 1974
      • Discuss
    • 4. Which of the following is tropical grassland?


    • Options
    • A. Taiga
    • B. Savannah
    • C. Pampas
    • D. Prairies
      • Discuss
    • 5. Indian Cancer Research institute is located at

    • Options
    • A. New Delhi
    • B. Calcutta
    • C. Chennai
    • D. Mumbai
      • Discuss
    • 6. The ratio of land to ocean in the southern hemisphere is

    • Options
    • A. 1 to 1.5
    • B. 1 to 1
    • C. 1 to 4
    • D. 1 to 10
      • Discuss
    • 7. How many players are there in Water Polo team?

    • Options
    • A. 4
    • B. 5
    • C. 6
    • D. 7
      • Discuss
    • 8. Gangubai hangal is the name associated with

    • Options
    • A. Literature
    • B. Music
    • C. Journalism
    • D. Environment
      • Discuss
    • 9. The largest production of mica in Asia is from


    • Options
    • A. Indonesia
    • B. Malaysia
    • C. Myanmar
    • D. India
      • Discuss
    • 10. Plants synthesis protein from

    • Options
    • A. starch
    • B. sugar
    • C. amino acids
    • D. fatty acids
      • Discuss

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