Quiz  /  P Block Elements Class 11 MCQ Questions With Answers

  • 1. 
    Stable oxides of carbon are

  • CO, CO2
  • CO, C3O2
  • C2O,C3O2
  • C2O

  • 2. 
    Which of the following is not amphoteric

  • CO2
  • GeO2
  • SnO2
  • PbO2

  • 3. 
    Sindoor is

  • PbNO3
  • Pb3O4
  • PbOH2
  • PbCO3

  • 4. 
    What is the nature of carbide of silicon

  • Covalent
  • Ionic
  • Metallic
  • Van der waals

  • 5. 
    In group 15 elements as we move down the group electronegativity

  • Decreases
  • Increases
  • Remain constant
  • None of the above

  • 6. 
    Si2O7 is

  • Pyrosilicate
  • Sheet silicate
  • Chain silicate
  • Orthodox silicate

  • 7. 
    Buckminster fullerene is

  • C 60
  • C90
  • Pure diamond
  • Graphite

  • 8. 
    CO+N2 is

  • Producer gas
  • Water gas
  • Syn gas
  • Coal gas

  • 9. 
    Which of the following is a interstitial carbide

  • WC
  • SiC
  • Al4C3
  • Be2C

  • 10. 
    Al4C3 on hydrolysis give

  • CH4
  • C2H6
  • C2H4
  • C2H2

  • 11. 
    As we move down the group reducing character of group 15 elements

  • Increases
  • Decreases
  • Remain constant
  • None of the above

  • 12. 
    As we move down the group thermal stability of group 15 elements hydrides

  • Increases
  • Decreases
  • Remain constant
  • None of the above

  • 13. 
    Quartz is a crystalline variety of

  • Silicon carbide
  • Silica
  • Sodium silicate
  • Silicon

  • 14. 
    In group 15 elements as we move down the road atomic radii

  • Increases
  • Decreases
  • Remain same
  • None of the above

  • 15. 
    As we move down the group basicity of group 15 elements

  • Increases
  • Decreases
  • Remain constant
  • None of the above
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