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Assam CEE Classification of Elements and Periodicity — practice questions — page 3

Explore 69 free Classification of Elements and Periodicity questions in Assam CEE Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Classification of Elements and Periodicity questions and exercises with answers

Showing questions 61–69 of 69.

Reading the definitions backRead the answer and worked solution →True or false: what bond parameters affectRead the answer and worked solution →Bond parameters in useRead the answer and worked solution →Which parameter answers this?Read the answer and worked solution →True or false: resonanceRead the answer and worked solution →Order the steps: draw a Lewis structureRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Assertion and reason: structureRead the answer and worked solution →Flip and pair: parameter with what it measuresRead the answer and worked solution →

Worked practice questions

Reading the definitions back

Read exercise and reference answers
Questions
  1. Question
    Electrovalency arises from
    Choices
    1. shared pairs
    2. electrostatic attraction of ions
    3. lone pairs
    Correct choice
    electrostatic attraction of ions
  2. Question
    Lewis described bonding by
    Choices
    1. transferring electrons
    2. lattice energy
    3. sharing electron pairs
    Correct choice
    sharing electron pairs
  3. Question
    An ionic compound is arranged as a
    Choices
    1. crystal lattice
    2. single molecule
    3. gas
    Correct choice
    crystal lattice
  4. Question
    Contributing forms taken together are the
    Choices
    1. lone pair
    2. resonance hybrid
    3. bond order
    Correct choice
    resonance hybrid
Straight recall. Source: syllabus Chemistry, Ch 4 Chemical Bonding and Molecular Structure.

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True or false: what bond parameters affect

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Questions
  1. Statement is true
    Yes
    Statement
    Bond length affects the properties of a compound.
  2. Statement is true
    Yes
    Statement
    Bond enthalpy affects the properties of a compound.
  3. Statement is true
    Yes
    Statement
    Bond polarity affects the properties of a compound.
  4. Statement is true
    No
    Statement
    Bond parameters have no effect on properties.
  5. Statement is true
    Yes
    Statement
    Bond order counts the shared electron pairs.
They are not decoration they set the compound's properties. Source: syllabus Chemistry, Ch 4 Chemical Bonding and Molecular Structure.

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Bond parameters in use

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Questions
  1. Question
    Bond length measures
    Choices
    1. the energy to break the bond
    2. the distance between bonded atoms
    3. the number of pairs
    Correct choice
    the distance between bonded atoms
  2. Question
    Bond enthalpy measures
    Choices
    1. the length
    2. the angle
    3. the energy involved in the bond
    Correct choice
    the energy involved in the bond
  3. Question
    Bond order counts
    Choices
    1. the shared electron pairs
    2. the lone pairs
    3. the atoms
    Correct choice
    the shared electron pairs
  4. Question
    Bond polarity concerns
    Choices
    1. bond length
    2. uneven sharing of the pair
    3. lattice energy
    Correct choice
    uneven sharing of the pair
Each parameter answers a different question about the bond. Source: syllabus Chemistry, Ch 4 Chemical Bonding and Molecular Structure.

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