Multiple choice

Which of the following compounds/molecules has dipole moment?

  1. HCl

  2. CO2 gas

  3. CH4

  4. N2
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A Correct answer
Explanation

HCl molecules, have a dipole moment because the hydrogen atom has a slight positive charge and the chlorine atom has a slight negative charge. Because of the force of attraction between oppositely charged particles, there is a small dipole-dipole force of attraction between adjacent HCl molecules.

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