Quiz  /  Chemical Bonding Class 9 MCQ Questions With Answers

  • 1. 
    A compound forms between a metal and a nonmetal. It is

  • ionic
  • metallic
  • covalent

  • 2. 
    Why do bonds form?

  • To fill the valence shell of electrons for the elements involved
  • to release energy stored in the bonds
  • because whenever you mix two chemicals, there will be a reaction
  • because of attraction

  • 3. 
    A substance which has a high melting point, conducts electricity when dissolved in water, and has a crystalline structure probably has what type of bond?

  • Ionic
  • Metallic
  • Covalent
  • Crystalline

  • 4. 
    Relatively soft

  • Ionic
  • Covalent

  • 5. 
    High Melting & Boiling Points

  • Ionic
  • Covalent

  • 6. 
    Which compound is held together by electrostatic forces?

  • NO2
  • CaSO4
  • Aluminum
  • P4O10

  • 7. 
    A mixture of two or elements at least one of which is a metal is called

  • an ion
  • an alloy
  • steel
  • a crystal

  • 8. 
    Using electronegativities, what type of bond is formed by Co and F.

  • ionic
  • polar covalent
  • non-polar covalent

  • 9. 
    Bonds formed by sharing electrons between atoms are

  • ionic
  • metallic
  • covalent
  • dipole-dipole

  • 10. 
    How many electrons does Si contain? (click to see image)

  • 14
  • 28
  • 2
  • 4

  • 11. 
    Predict the bond that will form between Se and Cl

  • Ionic
  • Covalent

  • 12. 
    What happens when an atom loses an electron?

  • It becomes Negatively Charged
  • It remains neutral because the proton also leaves.
  • It becomes Positively Charged
  • It stays the same.

  • 13. 
    ________ molecules are found in nature as single atom elements

  • polyatomic
  • monatomic
  • elemental
  • diatomic

  • 14. 
    How many electrons can the first energy level hold?

  • 1
  • 2
  • 8
  • 0

  • 15. 
    Bonds formed by transferring electrons from one atom to another are

  • ionic
  • metallic
  • non polar covalent
  • covalent

  • 16. 
    Which of the following can exist in monatomic form?

  • Oxygen
  • Copepr
  • Sodium
  • Argon

  • 17. 
    Which solid would be a good conductor?

  • sodium chloride
  • copper (II) sulfate
  • glucose
  • aluminum

  • 18. 
    The number of _____ is most important in determining how an atoms will bond.

  • Neutrons
  • Protons
  • Valence Electrons
  • Electron sin the innermost shell

  • 19. 
    A compound that is a poor conductor and has low melting and boiling points is most likely

  • ionic
  • metallic
  • covalent

  • 20. 
    Which compound would be a good conductor when in solution?

  • aluminum
  • sulfur dioxide
  • ammonia
  • sodium nitrate

  • 21. 
    Which of the following types of elements can exist in monatomic form?

  • alkali metals
  • transition metals
  • halogens
  • noble gases

  • 22. 
    Ionic compounds are held together by

  • intermolecular forces
  • electrostatic forces
  • magnetic forces
  • nuclear forces

  • 23. 
    A compound is made of two nonmetals. It is

  • ionic
  • metallic
  • covalent
  • All of above

  • 24. 
    Soluble in Water

  • Ionic
  • Covalent

  • 25. 
    There are 4 different types of subshells s,p,d,f

  • true
  • false

  • 26. 
    Predict the bond that will form between Be and F.

  • Ionic
  • Covalent

  • 27. 
    What elements generally make a covalent bond?

  • metal and nonmetal
  • 2 nonmetals
  • metal
  • none of the above

  • 28. 
    If an oxygen atom has 8 protons (+) and 10 electrons (-), what is it's charge?

  • O10-
  • O8+
  • O2-
  • O10+

  • 29. 
    What elements generally make an ionic bond?

  • metal and nonmetal
  • 2 nonmetals
  • metal
  • none of the above

  • 30. 
    What atom matches this electron configuration?1s22s22p63s2

  • Neon
  • Magnesium
  • Aluminum
  • Potassium
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