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Why can sugar (sucrose) melts on heating...

Why can sugar (sucrose) melts on heating but common salt (sodium chloride) does not melt so easily ?

Text Solution

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Common salt (NaCl) is an ionic compound in which `Na^(+)` ions and `Cl^(-)` ions are held together by strong electrostatic forces of attraction. Hence, its melting point is very high. Sucrose is a covalent compound and no ions are present. Molecules are held together by weak van der Waal forces and hydrogen bonds. Hence, it has low melting point.
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Knowledge Check

  • In which solvent does sodium chloride and sugar dissolves?

    A
    Naphthalene
    B
    Water
    C
    Anthracene
    D
    All of these