Question

Which of the following statements is incorrect?

• A. On prolonged dialysis colloid becomes stable
• B. $AgNO_3$ in excess $KI$ forms negative colloid
• C. $AgNO_3$ in excess $KI$ forms positive colloid
• D. Medicines work best in colloidal form because of greater surface area

Answer 1

Answer: (C)

$AgNO_3$ in excess $KI$ forms positive colloid

Answer 2

Mixing AgNO in excess KI forms negatively charged colloid.