Question
Chemistry Question on Surface Chemistry
Lyophilic colloids have a unique property of protecting lyophobic colloids. Lyophilic colloids are extensively solvated.
A
If both assertion and reason are true and reason is the correct explanation of assertion.
B
If both assertion and reason are true but reason is not the correct explanation of assertion.
C
If assertion is true but reason is false.
D
If both assertion and reason are false.
Answer
If both assertion and reason are true but reason is not the correct explanation of assertion.
Explanation
Solution
When a lyophilic sol is added to the lyophobic sol, the lyophilic particles form a layer around lyophobic particles and thus protect latter from electrolytes. Lyophilic colloids used for this purpose are called protective colloids.