Explain the following giving examples.
$(a)$ Colloid
$(b)$ Suspension

(N/A) Colloid: $A$ heterogeneous mixture in which the solute particle size is too small to be seen with the naked eye,but is large enough to scatter light is known as a colloid. There are two phases in a colloidal solution:
$1.$ Dispersed phase: The solute-like particles are said to be the dispersed phase.
$2.$ Dispersion medium: The medium in which the solute particles are spread is called the dispersion medium.
Example: Milk,clouds,etc.,are examples of colloids.
$(b)$ Suspension: $A$ suspension is a heterogeneous mixture in which the solute particles do not dissolve but remain suspended throughout the bulk of the medium. Particles of a suspension are visible to the naked eye.
Example: $A$ mixture of sand and water,muddy water,etc.