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Help me please, Which of the following statements aboutcolloids is False ?

Which of the following statements about colloids is False ?

  • Option 1)

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

  • Option 2)

    Colloidal particles can pass through ordinary filter paper.

  • Option 3)

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

  • Option 4)

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

 
Answers (1)
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As we learned

 

Properties of Colloidal Solutions -

Colligative Properties

- wherein

Colloidal particles being bigger aggregates, the number of particles in a colloidal solution is comparatively small as compared to a true solution. Hence, the value of colligative properties (osmotic pressure, lowering in vapour, pressure, depression in freezing point, etc.) are of small order compared to true solution of same concentration.

 

 Freezing point of colloidal solution is higher than true solution at same concentration of solute 


Option 1)

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

Option 2)

Colloidal particles can pass through ordinary filter paper.

Option 3)

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

Option 4)

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

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