CBSE  /  Class 11  /  Chemistry  /  Some Basic Concepts of Chemistry

  • 1. 
    Which of the following cannot give iodometric titrations

  • Fe
  • Cu
  • Pb
  • Ag

  • 2. 
    What is the concentration of nitrate ions if equal volumes of 0. 1 MAgNO

  • 0. 1 M
  • 0. 2 M
  • 0. 05 M
  • 0. 25 M

  • 3. 
    The number of moles present in 6 gms of carbon is:

  • 2
  • 0. 5
  • 5
  • 1

  • 4. 
    Which of the following contains same number of carbon atoms as are in 6. 0 g of carbon (C – 12)?

  • 6. 0 g Ethane
  • 8. 0 g Methane
  • 21. 0 g Propane
  • 28. 0 g CO

  • 5. 
    The significant figures in 3400 are

  • 2
  • 5
  • 6
  • 4

  • 6. 
    A symbol not only represents the name of the element but also represents

  • Atomic Mass
  • Atomic Number
  • Atomicity
  • Atomic Volume

  • 7. 
    What is the normality of a 1 M solution of H

  • 0. 5 N
  • 1. 0 N
  • 2. 0 N
  • 3. 0 N

  • 8. 
    Which of the following weighs the most?

  • One g – atom of nitrogen
  • One mole of water
  • One mole of sodium
  • One molecule of HSO

  • 9. 
    The sulphate of a metal M contains 9. 87% of M. This sulphate is isomorphous with ZnSO. 7H O. The atomic weight of M is

  • 40. 3
  • 36. 3
  • 24. 3
  • 11. 3

  • 10. 
    The S. I unit of temperature is :

  • Kelvin
  • Celsius
  • Fahrenheit
  • Centigrade
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