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Class 9 Chemistry · Chapter 3 · Test 7

Intermolecular Forces

25 MCQs covering intermolecular forces, dipole-dipole attractions, hydrogen bonding, boiling points of water and hydrogen halides, and the structures and properties of diamond and graphite.

MCQs

25 questions · 20 min · 25 marks

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Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

  1. Question 1

    What are intermolecular forces?

    • AForces within atomic nuclei
    • BAttractive forces between molecules
    • CForces that hold protons together
    • DForces found only in metals
    Show answer

    Answer: B

    Intermolecular forces are attractions between separate molecules.

  2. Question 2

    Which intermolecular force is present between all atoms and molecules?

    • AHydrogen bonding
    • BIonic attraction
    • CLondon dispersion forces
    • DMetallic bonding
    Show answer

    Answer: C

    London dispersion forces occur between all atoms and molecules.

  3. Question 3

    Which force occurs between polar molecules?

    • AMetallic bonding
    • BDipole-dipole attraction
    • CNuclear attraction
    • DCovalent network bonding
    Show answer

    Answer: B

    Polar molecules can attract one another through dipole-dipole forces.

  4. Question 4

    Which type of intermolecular force is especially important between water molecules?

    • AIonic bonding
    • BMetallic bonding
    • CHydrogen bonding
    • DCoordinate bonding
    Show answer

    Answer: C

    Water molecules form hydrogen bonds because hydrogen is bonded to highly electronegative oxygen.

  5. Question 5

    Which substance can form hydrogen bonds between its molecules?

    • ACH4
    • BH2S
    • CH2O
    • DCO2
    Show answer

    Answer: C

    Water molecules form hydrogen bonds through their O-H bonds and oxygen lone pairs.

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