Question

Which of the following is a characteristic of a colloid?

a) It forms 2 layers with a solution
b) It forms turbid layers
c) It forms heterogeneous layer
d) It forms a homogeneous layer​

Answer 1

Explanation:

Since a colloidal particle does not from a single layer with solvents, the only possibility is to form a turbid layer where the solution is an intermediate between a miscible and immiscible solution.

Answer 2

The colloid forms a turbid layer. (Option b)

• Colloids are mixtures having insoluble particles suspended in a solution where the particles are dispersed uniformly giving the mixture a turbid look.
• These suspended insoluble particles never settle, as a result, colloids never have two layers within them.
• In the physical sense, colloids are considered to be homogeneous since the particles remain dispersed uniformly.
• In the chemical sense, colloids are considered to be heterogeneous since it contains insoluble particles.
• But colloids are neither completely homogeneous nor completely heterogeneous.