Chemistry Test: Covalent Bonding Practice Questios! Quiz

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Chemistry Test: Covalent Bonding Practice Questios! Quiz - Quiz


A covalent bond is a chemical link that encompasses the allocation of electron pairs between atoms. These electron pairs are recognized as shared pairs or bonding pairs, and the constant stability of attractive and repulsive forces in the middle of atoms when they share electrons is known as covalent bonding. This quiz will facilitate you getting ready for your chemistry test on covalent bonding. Make sure to take your certificate when you have completed the quiz.


Questions and Answers
  • 1. 

    The rule that states that atoms will tend to bond in such a way that they will gain 8 electrons in their outermost energy shell is the...

    • A.

      Covalence Rule

    • B.

      Outermost Principle

    • C.

      Octet Rule

    • D.

      Eighth Principle

    • E.

      Valance Electron Rule

    Correct Answer
    C. Octet Rule
    Explanation
    The Octet Rule is a rule in chemistry that states atoms tend to bond in a way that allows them to have 8 electrons in their outermost energy shell. This is because having a full outer shell of electrons makes atoms more stable. By sharing, gaining, or losing electrons, atoms can achieve this stable configuration. The Octet Rule is a fundamental concept in understanding chemical bonding and the formation of molecules.

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  • 2. 

    In a covalent bond, as opposed to being lost or gained, electrons are

    Correct Answer
    shared between atoms, shared, shared., shared between atoms.
    Explanation
    In a covalent bond, electrons are shared between atoms. This means that the electrons are not lost or gained by any particular atom, but rather they are shared and move between the atoms involved in the bond. This sharing of electrons allows the atoms to achieve a more stable electron configuration and form a strong bond.

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  • 3. 

    Which of the following images represent a double covalent bond?A.                                                     B.             C. .D.

    • A.

      A

    • B.

      B

    • C.

      C

    • D.

      D

    • E.

      Both A and C

    Correct Answer
    C. C
    Explanation
    The image in option C represents a double covalent bond. In a double covalent bond, two pairs of electrons are shared between two atoms. In the image, there are two lines connecting the two atoms, indicating the sharing of two pairs of electrons. Option A does not show any bond, option B shows a single covalent bond, and option D shows a triple covalent bond. Therefore, the correct answer is C.

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  • 4. 

    A Lewis dot structure is depicted as the chemical symbol of an element surrounded by a specified number of dots. These dots represent the element's

    Correct Answer
    valance electrons., valance electrons, outermost electrons, outermost electrons.
    Explanation
    A Lewis dot structure is a representation of an element's valence electrons. Valence electrons are the outermost electrons of an atom, which are involved in chemical bonding. The dots in the Lewis dot structure symbolize these valence electrons. Therefore, the correct answer is "valence electrons." The repetition of "valence electrons" and "outermost electrons" in the answer options is likely a typographical error.

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  • 5. 

     Which of the following is false about covalent and ionic bonds?

    • A.

      Ionic bonds differ from covalent bonds in that electrons are shared in covalent bonds, while gained or lost in ionic bonds

    • B.

      Ionic bonds are stronger than covalent bonds

    • C.

      In both covalent and ionic bonds, atoms will bond in order to obtain a stable configuration of 8 valance electrons

    • D.

      Ionic bonds occur between both metals and nonmetals, while covalent bonds occur only between nonmetals.

    • E.

      The result of a covalent bond is called a molecule

    Correct Answer
    B. Ionic bonds are stronger than covalent bonds
    Explanation
    Ionic bonds are actually stronger than covalent bonds. Ionic bonds are formed when there is a complete transfer of electrons from one atom to another, resulting in the formation of positively and negatively charged ions that are attracted to each other. This strong electrostatic attraction between the opposite charges makes ionic bonds stronger. On the other hand, covalent bonds are formed when electrons are shared between atoms, resulting in a weaker bond compared to ionic bonds.

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  • 6. 

    In a double covalent bond, how many electrons does each electron share and how many total electrons are shared?

    • A.

      Electrons from each atom: 1 total electrons shared: 1

    • B.

      Electrons from each atom: 4 total electrons shared: 2

    • C.

      Electrons from each atom: 1 total electrons shared: 2

    • D.

      Electrons from each atom: 2 total electrons shared: 4

    • E.

      Electrons from each atom: 2 total electrons shared: 2

    Correct Answer
    D. Electrons from each atom: 2 total electrons shared: 4
    Explanation
    In a double covalent bond, each atom shares 2 electrons, resulting in a total of 4 electrons being shared between the two atoms.

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  • 7. 

    In comparison to pi bonds, the bond strenght of a sigma bond is  

    Correct Answer
    stronger., stronger, superior., greater, greater.
    Explanation
    The bond strength of a sigma bond is stronger compared to pi bonds. Sigma bonds are formed by the overlap of atomic orbitals along the axis connecting the bonded nuclei, resulting in a strong and direct bonding interaction. Pi bonds, on the other hand, are formed by the sideways overlap of atomic orbitals, which is weaker than the head-on overlap in sigma bonds. Hence, the bond strength of a sigma bond is stronger.

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  • 8. 

    Why do atoms bond?

    • A.

      Atoms bond in order to increase the electrostatic power of their nucleus

    • B.

      Atoms bond in order to gain a stable electron configuration of 8 valance electrons

    • C.

      Atoms bond in order to decrease the amount of protons which they contain in their nucleus

    • D.

      Both A and B

    • E.

      None of the above

    Correct Answer
    B. Atoms bond in order to gain a stable electron configuration of 8 valance electrons
    Explanation
    Atoms bond in order to gain a stable electron configuration of 8 valance electrons. This is known as the octet rule, which states that atoms tend to gain, lose, or share electrons in order to achieve a full outer electron shell with 8 electrons. By bonding with other atoms, they can achieve this stable configuration and increase their overall stability. This is a fundamental concept in chemistry and explains why atoms form chemical bonds.

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  • 9. 

    This picture represents a(n)

    • A.

      Ionic bond

    • B.

      Double covalent bond

    • C.

      Sigma bond

    • D.

      Triple covalent bond

    • E.

      Single covalent bond

    Correct Answer
    D. Triple covalent bond
    Explanation
    The picture represents a triple covalent bond because it shows three lines connecting the atoms, indicating the sharing of three pairs of electrons between the atoms. In a triple covalent bond, three pairs of electrons are shared, resulting in a strong bond between the atoms.

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  • 10. 

    In both sigma and pi bonds, the sharing of electrons occur in the

    Correct Answer
    "p" orbital, P orbital, p orbital, p-orbital, "P" orbital
    Explanation
    In both sigma and pi bonds, the sharing of electrons occurs in the "p" orbital, P orbital, p orbital, p-orbital, and "P" orbital.

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