Quiz  /  Hybridisation Class 10 MCQ Questions With Answers

  • 1. 
    In an MO diagram, if all electrons are paired, this means the molecule is ___.

  • diamagnetic
  • paramagnetic
  • polar
  • nonpolar

  • 2. 
    What is the bond order of the molecule shown here?

  • 0
  • 1
  • 2
  • 6

  • 3. 
    In which case does the central atom violate the octet rule?

  • BH3
  • NH3
  • H2O
  • HCl

  • 4. 
    Which is NOT correctly matched?

  • tetrahedral = sp3
  • trigonal planar = sp2
  • all of these are correctly matched
  • trigonal bipyramidal = sp3d2

  • 5. 
    Which statement is FALSE concerning this molecule?

  • there are 6 pi bonds
  • each O is sp3 hybridized
  • the N is sp3 hybridized
  • each single bond is made of 2 electrons

  • 6. 
    Which statements are true?

  • there are 4 pi bonds
  • all C atoms are sp2 hybridized
  • all C atoms have 120o bond angles
  • All of above

  • 7. 
    Which statement about oxygen (O2) is TRUE?

  • the molecule has 2 pi bonds
  • each O atom is sp hybridized
  • O2 is a colorless liquid at room temperatures and pressures
  • O2 is a paramagnetic molecule and is attracted to a magnet

  • 8. 
    In which molecule does the central atom have the same hybridization as the central atom in SF4?

  • CH4
  • XeF4
  • NH3
  • PH5

  • 9. 
    A particular MO diagram shows a diatomic molecule to have 10 bonding and 7 antibonding electrons. What is the bond order?

  • 3
  • 1
  • 1.5
  • 1.3

  • 10. 
    In order to break chemical bonds, energy must be ____.

  • released
  • absorbed
  • energy is not involved
  • None of these

  • 11. 
    Which is true of the C2 molecule shown here?

  • paramagnetic and bond order = 2
  • paramagnetic and bond order = 1
  • diamagnetic and bond order = 2
  • diamagnetic and bond order = 1

  • 12. 
    Which is most likely to form a covalent bond?

  • an alkali metal bonded to a halogen
  • a halogen bonded to a hydrogen atom
  • two transition metal atoms bonded to each other
  • a transition metal bonded to oxygen
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