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Matter in Our Surroundings — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings1 Mark
MCQ
On heating the solid ______________?
  • A
    Intermolecular attraction between particles increases.
  • B
    Intermolecular attraction between particles decreases.
  • C
    Intermolecular attraction between particles remains constant
  • D
    None of the above
✓

Answer

  1. Intermolecular attraction between particles decreases.

Explanation:

On heating, the solid changes into liquid in which the kinetic energy of the molecules increases due to which,  the inter molecular attraction between particles decreases and the molecules escapes from their positions.

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