Which of the following statements is incorrect?

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Question: Answered & Verified by Expert

Which of the following statements is incorrect?

ChemistrySurface ChemistryAIIMSAIIMS 2018 (26 May)

Options:

A On prolonged dialysis colloid becomes stable.
B $\mathrm{AgNO}_3$ in excess $\mathrm{KI}$ forms negative colloid.
C $\mathrm{AgNO}_3$ in excess $\mathrm{KI}$ forms positive colloid.
D Medicines work best in colloidal form because of greater surface area.

Solution:

1145 Upvotes Verified Answer

The correct answer is: $\mathrm{AgNO}_3$ in excess $\mathrm{KI}$ forms positive colloid.

Mixing $\mathrm{AgNO}_3$ in excess KI forms negatively charged colloid.

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