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  • Question
  • Which of the following inert gases is placed in period 4 of the periodic table?


  • Options
  • A. Kr
  • B. Rn
  • C. Xe
  • D. Ar

  • Correct Answer
  • Kr 

  • Tags: Bank Exams

    Chemistry problems


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    • 1. Which chemical is present in the cells of cork of tree which makes them impervious to gases and water

    • Options
    • A. Cellulose
    • B. Suberin
    • C. Pectin
    • D. Lignin
    • Discuss
    • 2. Rayon is chemically

    • Options
    • A. Glucose
    • B. Amylase
    • C. Cellulose
    • D. Pectin
    • Discuss
    • 3. Energy transfer by convection is primarily restricted to

    • Options
    • A. fluids
    • B. solids
    • C. liquids
    • D. gases
    • Discuss
    • 4. Another name for the activated complex is

    • Options
    • A. Transmission state
    • B. Energy barrier
    • C. Collision group
    • D. Transition state
    • Discuss
    • 5. Which scientist established the Law of Octaves?

    • Options
    • A. John Newlands
    • B. Antoine Lavoisier
    • C. Alfred Nobel
    • D. Marie Curie
    • Discuss
    • 6. ........... compound is used as a drying agent.

    • Options
    • A. Calcium oxide
    • B. Calcium carbide
    • C. Gypsum
    • D. Calcium carbonate
    • Discuss
    • 7. Hydrogenation process is associated with which of the following?

    • Options
    • A. Rubber
    • B. Petroleum
    • C. Copper
    • D. Edible fats
    • Discuss
    • 8. Which among the following metal is used for galvanization?

    • Options
    • A. Zinc
    • B. Copper
    • C. Iron
    • D. Silver
    • Discuss
    • 9. What is dry ice?

    • Options
    • A. Solid Carbon dioxide
    • B. Solid Nitrogen dioxide
    • C. Solid Sulphur dioxide
    • D. Solid Water
    • Discuss
    • 10. The depletion in Ozone layer is caused by ___________ .

    • Options
    • A. Nitrous oxide
    • B. Carbon dioxide
    • C. Chlorofluorocarbons
    • D. Methane
    • Discuss


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