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Which one of the following statements is FALSE for hydrophilic sols ? (1) Their viscosity is of the order of that of H2O. (2) The sols cannot be easily coagulated. (3) They do not require electrolytes for stability. (4) These sols are reversible in nature.

1. Their viscosity is of the order of that of H2O.
2. The sols cannot be easily coagulated.
3. They do not require electrolytes for stability.
4. These sols are reversible in nature.

Correct answer: Their viscosity is of the order of that of H2O.

Solution

Hydrophilic sols typically have a higher viscosity than water due to the presence of larger particles and interactions between them, making the statement about their viscosity being similar to that of water false.

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