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  • Question
  • The inexpensive and commonly used variety of glass is called soda glass. It is called so because


  • Options
  • A. was used initially for making bottles of soda(carbonated drink)
  • B. is made using soda(sodium carbonate)
  • C. was initially used for storing sodium carbonate
  • D. is made using soda lime

  • Correct Answer
  • is made using soda(sodium carbonate) 


  • Chemistry problems


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    • 1. The most electropositive elements among the following is

    • Options
    • A. Na
    • B. Ca
    • C. K
    • D. Cs
    • Discuss
    • 2. The gas used for artificial ripening of green fruit is

    • Options
    • A. ethylene
    • B. ethane
    • C. carbon dioxide
    • D. acetylene
    • Discuss
    • 3. The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

    • Options
    • A. liquation
    • B. leaching
    • C. levigation
    • D. magnetic separation
    • Discuss
    • 4. The monomer of polythene is

    • Options
    • A. vinyl chloride
    • B. ethylene
    • C. ethyl alcohol
    • D. None of the above
    • Discuss
    • 5. The ionic radii of N3-, O2-, F- and Na+ follows the order

    • Options
    • A. N3- > O2- > F- > Na+
    • B. N3- > Na+ > O2- > F-
    • C. Na+ > O2- > N3- > F-
    • D. O2- > F- > Na+ > N3-
    • Discuss
    • 6. The inert gases are ____ in water

    • Options
    • A. sparingly soluble
    • B. insoluble
    • C. soluble
    • D. None of these
    • Discuss
    • 7. The number of moles of solute present in 1 kg of a solvent is called its

    • Options
    • A. molality
    • B. molarity
    • C. normality
    • D. formality
    • Discuss
    • 8. The oil used in the froth floatation process is

    • Options
    • A. coconut oil
    • B. olive oil
    • C. kerosene oil
    • D. pine oil
    • Discuss
    • 9. The heat energy produced when the human body metabolises 1 gram of fat is

    • Options
    • A. 30 KJ
    • B. 1 KJ
    • C. 39 KJ
    • D. 29 KJ
    • Discuss
    • 10. The most abundant rare gas in the atmosphere is

    • Options
    • A. He
    • B. Ne
    • C. Ar
    • D. Xe
    • Discuss


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