Which of the following statements about colloids is False?

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Freezing point of colloidal solution is lower than true solution at same concentration of a solute.

Colloidal particles can pass through ordinary filter paper.

When silver nitrate solution is added to potassium iodide solution, a negatively charged colloidal solution is formed.

When excess of electrolyte is added to colloidal solution, colloidal particle will be precipitated.

answer is C.

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Detailed Solution

Freezing point of colloidal solution same as the true solution at same concentration of a solute.
Colloidal particles are so small they can pass through ordinary filter paper.
When silver nitrate solution is added to potassium iodide solution, a negatively charged colloidal solution is formed.
When excess of electrolyte is added to colloidal solution, colloidal particle will be precipitated.

Therefore, option C is correct.

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