Question

Is colloidal solution homogeneous or heterogeneous?

Answer 1

Answer:

Colloid:

• Colloids are heterogeneous mixtures in which particles of an insoluble substance are suspended throughout another substance.
• The composition of the constituents is not identical throughout the solution.
• In this solution, the size of solute particles is between those in true solutions and those in suspensions.
• The size of particle ranges from $1$nanometer ${10}^{-9}\mathrm{m}$ to $1$ micrometer${10}^{-6}\mathrm{m}$.
• In a colloidal solution like the mixture of milk, these colloidal particles can scatter light and the path of the light beam.
• For example, smoke and dust in the air. Here solid dust particles are suspended in a gaseous air medium.

Conclusion:

Therefore, Colloidal solutions are examples of heterogeneous mixtures