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Class 9 Chemistry · Chapter 3 · Test 5

Metallic Bonding

25 MCQs covering the metallic bond, the sea of delocalized electrons, metal properties, electrical conductivity, malleability, ductility, and the relative strength of metallic bonds.

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 is a metallic bond?

    • AAttraction between positive metal ions and delocalized electrons
    • BSharing of electrons between two nonmetals
    • CAttraction between oppositely charged molecules
    • DTransfer of protons between atoms
    Show answer

    Answer: A

    A metallic bond is the electrostatic attraction between positive metal ions and delocalized electrons.

  2. Question 2

    Which particles are present in the metallic bonding model?

    • ANegative nonmetal ions and protons
    • BPositive metal ions and delocalized electrons
    • COnly neutral atoms
    • DPositive and negative molecules
    Show answer

    Answer: B

    Metallic bonding is explained by positive metal ions surrounded by delocalized electrons.

  3. Question 3

    What is meant by a sea of electrons in metallic bonding?

    • AElectrons fixed between two atoms
    • BElectrons inside the nucleus
    • CDelocalized electrons moving throughout the metal lattice
    • DElectrons transferred to nonmetals
    Show answer

    Answer: C

    The sea of electrons refers to mobile delocalized valence electrons throughout the metal structure.

  4. Question 4

    Which property of metals is explained by mobile electrons?

    • ABrittleness
    • BElectrical conductivity
    • CTransparency
    • DLow density
    Show answer

    Answer: B

    Mobile electrons carry electric charge through metals.

  5. Question 5

    What does malleability mean?

    • AAbility to be drawn into wires
    • BAbility to dissolve in water
    • CAbility to be hammered into sheets
    • DAbility to conduct sound
    Show answer

    Answer: C

    Malleability is the ability of a material to be hammered or rolled into sheets.

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