Covalent Bond Test! Trivia Quiz

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| By Joeltzy
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  • 1/8 Questions

    What is a covalent bond?

    • The transfer of electrons from one atom to another atom
    • The sharing of electrons equally between atoms of non-metal in order to attain the (stable) electronic confirguration of a noble gas.
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About This Quiz


Covalent bonds are the chemical bonds that enable atoms to share electrons. There are different types of covalent bonds, depending on the number of electrons being shared. An example of a covalent body is the one where hydrogen and oxygen atoms bond. Do you know how to describe covalent bonds correctly? This quiz will help you refresh your memory on these types of bonds.

Covalent Bond Test! Trivia Quiz - Quiz

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  • 2. 
    What are the ions present in this dot and cross diagram? - ProProfs

    What are the ions present in this dot and cross diagram?

    • Helium and Fluorine ions

    • Hydrogen and Sodium ions

    • Hydrogen and Flourine ions

    Correct Answer
    A. Hydrogen and Flourine ions
    Explanation
    The dot and cross diagram shows two elements, hydrogen and fluorine, which have gained or lost electrons to form ions. Hydrogen has lost an electron and become a positive ion, while fluorine has gained an electron and become a negative ion. Therefore, the correct answer is hydrogen and fluorine ions.

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  • 3. 

    What type of bond is present in this structural formula?X = X

    • Single Bond

    • Double Bond

    • Triple Bond

    Correct Answer
    A. Double Bond
    Explanation
    two lines between 2 atoms represent a double covalent bond.

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  • 4. 

    Which pair of ions will form a double bond?

    • Hydrogen ions

    • Oxygen ions

    • Nitrogen ions

    Correct Answer
    A. Oxygen ions
    Explanation
    an oxygen molecule involves a double as oxygen ion requires 2 electrons to achieve a stable electronic configuration of a noble gas. therefore it shares 2 electrons with the other oxygen ion which also shares 2 electrons.

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  • 5. 

    Which of these is covalent bonding? i) σ-bonding ii) π-bonding iii) agostic interactions iv) three-center two-electron bonds

    • I) and iii)

    • I) only

    • Ii), iii) and iv)

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Covalent bonding includes many kinds of interaction, including σ-bonding, π-bonding, agostic interactions, and three-center two-electron bonds.

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  • 6. 
    What is missing in this dot and cross diagram? - ProProfs

    What is missing in this dot and cross diagram?

    • There should be 4 lone pairs of electrons added for the Oxygen ion.

    • Oxygen should share 4 electrons with 4 Hydrogen Ions.

    • There should be 2 lone pairs of electrons added for Hydrogen ions.

    Correct Answer
    A. There should be 4 lone pairs of electrons added for the Oxygen ion.
    Explanation
    Lone pairs should be drawn in a dot-and-cross diagram. therefore, there should be 4 lone pairs around the oxygen ion as it has 6 valence electrons and would only share 2 electrons.

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  • 7. 
    What is the chemical formula for this dot-and-cross covalent bond diagram? - ProProfs

    What is the chemical formula for this dot-and-cross covalent bond diagram?

    • CaOH

    • 2CaOH

    • Ca(OH)2

    Correct Answer
    A. Ca(OH)2
    Explanation
    Ca has a valency of 2+ while hydroxide has a valency of 1-. Therefore the compund of these 2 ions will form Ca(OH)2

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  • 8. 

    What are the strongest type of covalent chemical bond?

    • Pi bond

    • Sigma Bond

    • Polar Bond

    • Non-Polar Bond

    Correct Answer
    A. Sigma Bond
    Explanation
    A sigma bond is the strongest type of covalent chemical bond. It is formed by the overlap of atomic orbitals along the axis connecting the bonded atoms. This type of bond allows for the maximum sharing of electrons between the atoms, resulting in a strong and stable bond. Pi bonds, on the other hand, are formed by the sideways overlap of atomic orbitals and are generally weaker than sigma bonds. Polar and non-polar bonds refer to the distribution of charge within a molecule and do not determine the strength of the bond.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 27, 2009
    Quiz Created by
    Joeltzy
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