Moderate

Dipole-dipole forces are stronger between the molecule when?

Correct answer: A. The electronegativity difference is higher

  • A. The electronegativity difference is higher
  • B. The electronegativity difference is less
  • C. The molecules are far from each other
  • D. The lectronegativity difference is zero

Explanation

Greater electronegativity difference means the molecule is polar, hence polar molecules have permanent dipole-dipole that are stronger than induced dipole-dipole forces which is because of less electronegativity difference.

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About Properties of Liquids

Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.

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