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MHT CET Medical202623 April 2026Evening ShiftPhysicsElectrostaticsActual

Which of the following statements is NOT TRUE for polar molecule? a. In polar molecule the centre of mass of positive charges coincide with the centre of mass of negative charges. b. They have permanent dipole moment. c. They have asymmetric shape. d. HCL, H ₂ O are the examples of polar molecules

Options

  1. Ac
  2. Ba
  3. Cd
  4. Db

Correct answer

B. a

Step-by-step solution

In a polar molecule, the centre of positive charge does not coincide with the centre of negative charge. This separation of charges is what gives the molecule a permanent electric dipole moment. Therefore, the statement that the centre of mass of positive charges coincides with the centre of mass of negative charges is incorrect for polar molecules. This property belongs to non-polar molecules. Statements b, c, and d correctly describe the properties and examples of polar molecules. Answer: a

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