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JEE Main202125 Feb 2021Evening ShiftChemistrySurface ChemistryActual

Which one of the following statements is FALSE for hydrophilic sols?

Options

  1. AThese sols are reversible in nature.
  2. BTheir viscosity is of the order of that of H 2 O .
  3. CThe sols cannot be easily coagulated.
  4. DThey do not require electrolytes for stability.

Correct answer

B. Their viscosity is of the order of that of H 2 O .

Step-by-step solution

Viscosity of hydrophilic sol > viscosity of H 2 O Hydrophilic sol is more stable so can't be easily coagulated Hydrophilic sols are reversible sols. No electrolytes are required to stabilise hydrophilic sol.

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