Chemistry · Colligative properties of dilute solutions: a relative lowering of vapour pressure, depression of freezing point, the elevation of boiling point and osmotic pressure
Which one of the following statements is false for hydrophilic colloids?
Which one of the following statements is false for hydrophilic colloids?
- A. They do not require electrolytes for stabillity
- B. Their coagulation is reversible
- C. Their viscosity is of the order of that of water
- D. Their surface tension is usually lower than that of dispersion medium
Step-by-step solution
Hydrophilic colloids (lyophilic) have high viscosity due to solvation and particle interactions, typically much greater than water. Option C is false because their viscosity is not of the order of water. Options A, B, and D are true: they are stable without electrolytes, coagulation is reversible, and surface tension is usually lower than the dispersion medium.
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