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Question: Answered & Verified by Expert
Which of the following statements about colloids is false?
ChemistrySurface ChemistryJEE MainJEE Main 2018 (15 Apr)
Options:
  • A When silver nitrate solution is added to potassium iodide solution a negatively charged colloidal solution is formed.
  • B Freezing point of colloidal solution is lower than true solution at same concentration of a solute.
  • C Colloidal particles can pass through ordinary filter paper.
  • D When excess of electrolyte is added to colloidal solution, colloidal particle will be precipitated.
Solution:
1271 Upvotes Verified Answer
The correct answer is: Freezing point of colloidal solution is lower than true solution at same concentration of a solute.

Freezing point of colloidal solution is same as that of true solution at same concentration of a solute. The depression in freezing point is colloidal property and depends on the number of solute particles. It is independent of size or shape of solute particles. 

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