Question

What type of solution is milk?

• A. Homogeneous solution
• B. Suspension
• C. Colloidal
• D. None of these

Answer 1

The correct option is C

Colloidal

Explanation for correct option:

(C) Colloidal Solutions

• A heterogeneous solution in which the particle size is between 10^-7 cm to 10^–5 cm, such that the solute particles neither dissolve nor settle down in a solvent is called a colloidal solution.
• Milk is an example of a colloidal solution.

Explanation for incorrect options:

(A) Homogenous:

• Homogenous solutions are those solutions in which solute and solvent are in the same phase throughout the solution.

(B) Suspensions

• A heterogeneous mixture of insoluble particles of solute, spread throughout a solvent, is called a suspension.
• The particle size (diameter) in a suspension is more than 10^-5cm.
• The particles have a tendency to settle down at the bottom of the vessel and can be filtered out because their size is bigger than the size of the pores of the filter paper.

Hence, option(C) is the correct option.