Identify the incorrect statement

• A

  Values of colligative properties of colloidal solution are of small order compared to values of true solution.
• B

  Tyndall effect is observed only when diameter of the dispersed particles is not much smaller than wavelength of incident light.
• C

  Colour of colloidal solution depends on the wavelength of light scattered by the dispersed particles.
• Correct answer
  D

  Brownian movement is due to balanced bombardment of molecules of dispersion medium on colloidal particles.

Hence, the correct answer is option: 'D'.