Quiz  /  Bond Energy Class 12 MCQ Questions With Answers

  • 1. 
    What kind of energy is stored in the chemical bonds between atoms?

  • kinetic energy
  • thermal energy
  • chemical energy
  • light energy

  • 2. 
    How many valence electrons does sulfur (S) have?

  • 3
  • 4
  • 5
  • 6

  • 3. 
    All types of chemical bonds hold the same amount of chemical energy.

  • True
  • False

  • 4. 
    How many types of bonds are present in this molecule?

  • 3
  • 5
  • 6
  • 8

  • 5. 
    Valence electrons in pairs (as shown here on the nitrogen) are able to be used for additional bonding.

  • True
  • False

  • 6. 
    Which units are used to measure energy?

  • Newtons
  • kilograms
  • meters/second
  • Joules

  • 7. 
    How can you determine an atom's valence electrons?

  • the column on the periodic table
  • the row on the periodic table
  • the atomic number
  • the atomic mass

  • 8. 
    What kind of energy is released or absorbed when chemical bonds are formed and broken?

  • kinetic energy
  • thermal (heat) energy
  • chemical energy
  • light energy

  • 9. 
    How many C-H bonds are present here?

  • 4
  • 5
  • 6
  • 7

  • 10. 
    How do atoms fill their valence level with electrons?

  • share with other atoms
  • steal from other atoms
  • give up electrons to other atoms

  • 11. 
    How many valence electrons does neon (Ne) have?

  • 6
  • 7
  • 8
  • 9

  • 12. 
    What is an electron?

  • + charged particle in an atom's nucleus
  • - charged particle in an atom's nucleus
  • - charged particle outside an atom's nucleus
  • + charged particle outside an atom's nucleus

  • 13. 
    How many valence electrons do most electrons want in their valence shell to be stable? (Except hydrogen!)

  • 2
  • 4
  • 6
  • 8

  • 14. 
    How many electrons are shared in one chemical bond?

  • 2
  • 4
  • 6
  • 8

  • 15. 
    Which of the following is NOT a type of bond present in this molecule?

  • C-H
  • C-C
  • C=O
  • C-O

  • 16. 
    How many carbon-oxygen double bonds are present here?

  • 1
  • 2
  • 3
  • 4
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