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COMEDK Haloalkanes and Haloarenes — practice questions — page 2

Explore 41 free Haloalkanes and Haloarenes questions in COMEDK Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Haloalkanes and Haloarenes questions and exercises with answers

Showing questions 31–41 of 41.

Spot the one that does not belongRead the answer and worked solution →Order the reasoning: why resonance is neededRead the answer and worked solution →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

Spot the one that does not belong

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Questions
  1. Items
    1. Crystal lattice
    2. Shared electron pair
    3. Electrovalency
    Odd item
    Shared electron pair
  2. Items
    1. Bond length
    2. Bond angle
    3. Lattice enthalpy
    Odd item
    Lattice enthalpy
  3. Items
    1. Rutherford
    2. Kossel
    3. Lewis
    Odd item
    Rutherford
Grouped by which bonding picture each belongs to. Source: syllabus Chemistry, Ch 4 Chemical Bonding and Molecular Structure.

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Order the reasoning: why resonance is needed

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Steps
  1. Draw a Lewis structure for the molecule
  2. Notice it does not account for all the observed properties
  3. Draw the other structures on the same skeletal arrangement
  4. Recognise none of them alone is correct
  5. Take them together as the resonance hybrid
The chapter's own argument. Source: syllabus Chemistry, Ch 4 Chemical Bonding and Molecular Structure.

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Reading the definitions back

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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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