NEET2019Chemistry-Surface Chemistry
NEET 2019 Chemistry Colloids MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Which mixture of the solutions will lead to the formation of negatively charged colloidal [AgI]I⁻ sol?
A
50 mL of 1 M AgNO₃ + 50 mL of 2 M KI
B
50 mL of 2 M AgNO₃ + 50 mL of 1.5 M KI
C
50 mL of 0.1 M AgNO₃ + 50 mL of 0.1 M KI
D
50 mL of 1 M AgNO₃ + 50 mL of 1.5 M KI
Correct Answer
Option A
Detailed Explanation
Excess KI leads to the formation of negatively charged colloidal sol due to adsorption of I⁻ ions.
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