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Covalent compounds have low melting poin...

Covalent compounds have low melting points because

A

covalent molecules have definite shape

B

covalent bond is weaker than ionic bond

C

covalent bond is less exothermic

D

covalent molecules are held by weak van der Waals forces of attraction.

Text Solution

Verified by Experts

The correct Answer is:
D
Covalent compounds have low melting points because their molecules are held by weak van der Waals forces.
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Covalent compounds have high melting points.

Why do covalent compounds have low melting points and boiling points?

Knowledge Check

  • Covalent compounds have low melting point because

    A
    covalent bond is less exothermic
    B
    covalent molecules have definite shape
    C
    covalent bond is weaker than ionic bond
    D
    covalent molecules are held by weak Vander waal's force of attraction

  • Compounds having lowest melting point:

    A
    `LiCl`
    B
    `CsCl`
    C
    `RbCl`
    D
    `KCl`

  • Compounds having lowest melting point:

    A
    `LiCl`
    B
    `CsCl`
    C
    `RbCl`
    D
    `KCl`

    • Similar Questions

    Explore conceptually related problems

    Covalent compounds have low melting and boiling point. Why?

    Explain why: (a). Covalent compounds have generally low melting points. (b) ionic compounds have generally high melting points.

    Why do covalent compounds have low melting and boiling points ?

    Why do halogens have low melting points ?

    Generally the ionic compounds have high melting points

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