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AIIMS 201826 May
Exam
AIIMS
Year
2018
Date
26 May
Subject
Chemistry
Chapter
Surface Chemistry

AIIMS 2018 · 26 May · Chemistry · Surface Chemistry

Which of the following statements is incorrect?

Which of the following statements is incorrect?

Options

  1. AOn prolonged dialysis colloid becomes stable.
  2. BAgNO3\mathrm{AgNO}_3 in excess KI\mathrm{KI} forms negative colloid.
  3. CAgNO3\mathrm{AgNO}_3 in excess KI\mathrm{KI} forms positive colloid.
  4. DMedicines work best in colloidal form because of greater surface area.

Correct answer

C. AgNO3\mathrm{AgNO}_3 in excess KI\mathrm{KI} forms positive colloid.

Step-by-step solution

Mixing AgNO3\mathrm{AgNO}_3 in excess KI forms negatively charged colloid.
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