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Indian Navy Pilot Aldehydes Ketones — practice questions — page 2

Explore 34 free Aldehydes Ketones questions in Indian Navy Pilot Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Aldehydes Ketones questions and exercises with answers

Showing questions 31–34 of 34.

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

Order the steps: draw a Lewis structure

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Steps
  1. Count the valence electrons of every atom
  2. Arrange the atoms in their skeletal structure
  3. Place one shared pair between each bonded pair of atoms
  4. Distribute the remaining electrons as lone pairs
  5. Add multiple bonds if any atom still lacks a noble gas configuration
Count first, then place, then check. Source: syllabus Chemistry, Ch 4 Chemical Bonding and Molecular Structure.

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Spot the one that does not belong

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Questions
  1. Items
    1. Shared pair
    2. Crystal lattice
    3. Lone pair
    Odd item
    Crystal lattice
  2. Items
    1. Bond length
    2. Bond order
    3. Lattice enthalpy
    Odd item
    Lattice enthalpy
  3. Items
    1. Electrovalency
    2. Resonance
    3. Canonical form
    Odd item
    Electrovalency
One term belongs to the ionic picture. Source: syllabus Chemistry, Ch 4 Chemical Bonding and Molecular Structure.

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Assertion and reason: structure

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Questions
  1. Reason
    Length, angle, enthalpy, order and polarity all shape how it behaves.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    Bond parameters matter for a compound's properties.
  2. Reason
    More shared pairs pull the bonded atoms closer together.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    A triple bond is shorter than a single bond.
  3. Reason
    Several structures are written on one skeletal arrangement.
    Verdict
    The assertion is false and the reason is true.
    Assertion
    Resonance means the molecule oscillates.
The reason must genuinely explain the assertion. Source: syllabus Chemistry, Ch 4 Chemical Bonding and Molecular Structure.

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