Structure And Bonding Part 1

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Chemistryclassro
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Quizzes Created: 1 | Total Attempts: 809
| Attempts: 809
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  • 1/6 Questions

    What is the study of organic chemistry of?

    • The study of compounds that contain the element carbon
    • The study of matter
    • The study of the physical world
    • The study of molecular matter
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About This Quiz

Review section on structure and bonding first before answering questions.

Structure and Bonding Help

Chemical Bonding Quizzes & Trivia

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  • 2. 

    Elements in the same column have similar electronic and chemical properties.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because elements in the same column of the periodic table, also known as groups or families, have the same number of valence electrons. This similarity in electronic configuration results in similar chemical properties among these elements. The valence electrons determine the reactivity and bonding behavior of an element, so elements in the same column tend to have similar reactivity and form similar types of compounds.

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  • 3. 

    What are the average bond angles in CH4?

    • 120 degrees

    • 60 degrees

    • 109.5 degrees

    • 120.5 degrees

    • 45.5 degrees

    Correct Answer
    A. 109.5 degrees
    Explanation
    The correct answer is 109.5 degrees because in a methane molecule (CH4), the carbon atom is at the center and the four hydrogen atoms are arranged in a tetrahedral shape around it. In a tetrahedral shape, the bond angles between the carbon and hydrogen atoms are all equal and are approximately 109.5 degrees.

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  • 4. 

    An sp3 has a % s - character of?

    • 33%

    • 18%

    • 53%

    • 25%

    • 42%

    Correct Answer
    A. 25%
    Explanation
    An sp3 hybrid orbital is formed by the combination of one s orbital and three p orbitals. The s orbital contributes 25% to the sp3 hybrid orbital, while each of the three p orbitals contributes 75% (25% each). Therefore, the correct answer is 25% for the s-character of an sp3 hybrid orbital.

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  • 5. 

    Bonding is a favorable process because it always leads to higher energy and increased stability.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Bonding is a favorable process because it leads to lower energy and increased stability. When atoms bond together, they form more stable arrangements by filling their outer electron shells. This results in a decrease in potential energy and an increase in stability. Therefore, the statement that bonding always leads to higher energy and increased stability is incorrect.

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  • 6. 

    Which one of the following are covalent bonds.

    • NaCl

    • H2O

    • CO

    • CH3CH3

    • AgO3

    Correct Answer(s)
    A. H2O
    A. CO
    A. CH3CH3
    Explanation
    The covalent bonds are formed when two atoms share electrons. In the given options, H2O (water), CO (carbon monoxide), and CH3CH3 (ethane) have covalent bonds because they involve the sharing of electrons between the atoms. NaCl (sodium chloride) and AgO3 (silver trioxide) do not have covalent bonds as they involve the transfer of electrons, resulting in ionic bonding.

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  • Current Version
  • Mar 18, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 01, 2009
    Quiz Created by
    Chemistryclassro
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