Quiz  /  Covalent Bonding Class 12 MCQ Questions With Answers

  • 1. 
    The chemical name of P₄S₁₀ is:

  • phosphorous sulfide
  • phosphorus sulfide
  • tetraphosphorus decasulfide
  • phosphorus (X) sulfide

  • 2. 
    If electrons are shared unequally then the bond is....

  • Non-polar covalent
  • Ionic
  • Non-polar ionic
  • Polar covalent

  • 3. 
    Name CCl4

  • carbon carbon tetraiodide
  • carbon tetrachloride
  • monocarbon tetrachloride
  • water

  • 4. 
    What is the formula for diphosphorus pentoxide?

  • P2O5
  • PO5
  • P5O2
  • P2O6

  • 5. 
    A covalent compound has.....

  • Two nonmetals
  • A metal and a nonmetal
  • A metal and a polyatomic ion
  • Two metals

  • 6. 
    Write the formula for: selenium dihydride

  • H2O
  • (H3C)3 Si
  • H₂Se
  • None of these

  • 7. 
    When you have F-F, what is the polarity?

  • nonpolar
  • polar
  • ionic
  • molecular

  • 8. 
    When you have H-Cl, what is the polarity?

  • nonpolar
  • polar
  • ionic
  • molecular

  • 9. 
    Write the formula for: dihydrogen monoxide

  • Le
  • H2
  • H2O
  • None of these

  • 10. 
    Name the following: PCl5 ( Phosphorus Pentafluoride )

  • True
  • False

  • 11. 
    The diagram below shows the electron arrangement in a molecule of the compound AX2. Which pair of elements could A and X be?

  • A: oxygen; X: hydrogen
  • A: sulfur; X: chlorine

  • 12. 
    Covalent bonds are formed through the ____ of valence electrons

  • Transfer
  • Sharing
  • Donation
  • Removal

  • 13. 
    The chemical formula of sulfur hexabromide is

  • SBr₆
  • S₆Br
  • S(VI)Br
  • S6Br

  • 14. 
    Which of the following -ide endings is WRONG?

  • Phosphide
  • Oxygenide
  • Nitride
  • Sulfide

  • 15. 
    Which is the correct structure for NH3?Pictures correspond with a-d.

  • Option A.
  • Option B.
  • Option C.
  • Option D.

  • 16. 
    When you have Br-Br, what is the polarity?

  • Polar
  • nonpolar
  • Ionic
  • molecular

  • 17. 
    What is a double bond?

  • a bond between two atoms
  • one pair of electrons shared between two atoms
  • two pairs of electrons shared between two atoms
  • James Bond's brother

  • 18. 
    Identify the following compound as ionic or covalent: CF4

  • ionic
  • covalent

  • 19. 
    Which of the following is the correct LD Diagram for Hydrogen Cyanide, HCN?

  • A
  • B
  • C
  • D

  • 20. 
    What is it called if there are three-pairs of electrons being shared?

  • Triple Bond
  • Three Single Bonds
  • Tribond
  • Double and Single Bond Combo

  • 21. 
    Which compound is named disulfur trinitride?

  • S3N2
  • S2N3
  • Na2SN
  • S3N4

  • 22. 
    Fluorine (F₂) is a(n) _________________ molecule because the valence electrons are shared equally between the two fluorine atoms.

  • polar
  • nonpolar
  • ionic
  • crystal

  • 23. 
    Silicon dioxide is the compound in sand. What is its formula?

  • SO2
  • NaO2
  • SiO2
  • SiO

  • 24. 
    Which statement describes the formation of a covalent bond?

  • Electrons are shared between metallic atoms.
  • Electrons are shared between non-metallic atoms.
  • Electrons are transferred from metallic to non-metallic atom

  • 25. 
    The number of bonds an element will form in a covalent compound will be equal to

  • the number of valence electrons
  • eight electrons
  • the number of electrons needed to reach an octet
  • the group number

  • 26. 
    What can be generalized about covalent bonds?

  • Electrons will be exchanged.
  • Electrons will be transferred.
  • Electrons will be given and taken.
  • Electrons will be shared.

  • 27. 
    The chemical bond between a non-metal and another non-metal will be a ________ bond.

  • metal
  • ionic
  • covalent
  • polar

  • 28. 
    Give the formula for phosphorus trifluoride

  • P3F
  • PF
  • PF3
  • P3F3

  • 29. 
    Which of these is covalent?

  • NaCl
  • Pb(NO3)2
  • CO2
  • AlCl3

  • 30. 
    Give the formula for oxygen dichloride

  • OCl2
  • O2Cl2
  • OCl
  • O2Cl
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