Quiz  /  P Block Elements Gate & PSU MCQ Questions With Answers

  • 1. 
    What did Haber synthesis is for ?

  • Synthesizing Chlorine gas
  • Synthesizing Mustard gas
  • Synthesizing Ammonia
  • Synthesizing Sulphuric acid

  • 2. 
    Pb3O4 + 4HNO3

  • 2Pb(NO3)2 + 2PbO2 + 2H2O
  • 2Pb(NO3)4 + PbO2 + 2H2O
  • Pb(NO3)2 + PbO2 + 2H2O
  • 2Pb(NO3)2 + PbO2 + 2H2O

  • 3. 
    5H2N2O2 + 8KMnO4 + 12H2SO4

  • 8MnSO4 + 10HNO3 + 4K2SO4 + 10H2O
  • 8MnSO4 + 10HNO3 + 2K2SO4 + 12H2O
  • 8MnSO4 + 5HNO3 + 4K2SO4 + 12H2O
  • 8MnSO4 + 10HNO3 + 4K2SO4 + 12H2O

  • 4. 
    ZnO + 2NaOH

  • Na2ZnO2 + H2O
  • Na2ZnO4 + H2O
  • Na2ZnO2 + 2H2O
  • Na2ZnO4 + 2H2O

  • 5. 
    Which element is metalloid in group 13 element

  • B
  • Gn
  • Al
  • Ti

  • 6. 
    Hydrogen bonding does NOT play any role in the boiling point of

  • NH3
  • H2O
  • HF
  • HI

  • 7. 
    2NH3 + NaOCl

  • N2H4 + NaCl + 2H2O
  • N2H6 + NaCl + H2O
  • N2H4 + NaCl + H2O
  • N2H6 + NaCl + 2H2O

  • 8. 
    What is the oxidation number of Oxygen in OF2?

  • +2
  • 0
  • +1
  • -2

  • 9. 
    Compounds of boron with hydrogen are known as

  • Boranes
  • Borazines
  • Borazoles
  • None

  • 10. 
    Name most metallic element in Group 14

  • Lead
  • Carbon
  • Silicon
  • Germanium

  • 11. 
    Silicones are inert and non-toxic because silicones

  • are inorganic polymers
  • are saturated molecules
  • have many hydrophobic groups
  • have strong Si—O and Si—C bonds

  • 12. 
    2Na2S2O3 + I2

  • Na2S4O6 + 2NaI
  • NaS4O6 + 3NaI
  • Na2S4O6 + Na2I2
  • Na4S4O6 + 2NaI

  • 13. 
    In diamond, each carbon atom has connected to how many carbon atoms?

  • 4
  • 3
  • 6
  • 8

  • 14. 
    2MnO2 + 2H2SO4

  • 2MnSO4 +2H2O + O2
  • 2MnSO4 +H2O + 2O2
  • 2MnSO4 +3H2O + O2
  • MnSO4 +2H2O + O2

  • 15. 
    2HClO2 + I2

  • HIO3 + Cl2
  • 2HIO3 + Cl2
  • HIO3 + 2Cl2
  • 2HIO3 + 2Cl2

  • 16. 
    The molecular shape of SF4 is

  • square planar
  • see-saw
  • tetrahedral
  • bent 'T' shape

  • 17. 
    K2Cr2O7 + H2SO4 + 3H2SO3

  • K2SO4 + 3CrSO4 + 4H2O
  • K2SO4 + 2Cr2(SO4)3 + 4H2O
  • K2SO4 + 2CrSO4 + 4H2O
  • K2SO4 + Cr2(SO4)3 + 4H2O

  • 18. 
    How many valence electrons does group 16 elements have?

  • 18
  • 16
  • 10
  • 6

  • 19. 
    States of group 17 elements are ...

  • fluorine - liquid, chlorine - gas, Bromine liquid, iodine solid
  • fluorine - gas, chlorine - gas, Bromine liquid, iodine gas
  • fluorine - gas, chlorine - gas, Bromine liquid, iodine solid
  • fluorine - gas, chlorine - gas, Bromine gas, iodine solid

  • 20. 
    The inert pair effect increase when

  • Across the period
  • Going down the group
  • Don"t no the answer
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