Question

Differentiate between a true solution, sol, and a suspension on the basis of

1. Particle size
2. Filterability
3. Stability size
4. Homogeneity

Answer 1

	True solution	Sol	Suspension
Definition	A true solution is a homogeneous mixture that has uniform composition and properties throughout the solution	Colloids are heterogeneous mixtures in which particles of an insoluble substance are suspended throughout another substance	In suspension, solute particles are suspended throughout the bulk and can be visible by the naked eye.
Particle size	Particle size: Smaller than $1$nm. very small, cannot be seen by the naked eye	Particle size: Between $1$nm −$1$μm. between true solution and suspension, cannot be seen by the naked eye	Particle size: Greater than $1$μm Large, cannot be seen by naked eye
Filterability	Filtration separation - not possible	Filtration separation - not possible	Filtration separation - possible
Stability size	solute particles do not settle down when lest undisturbed	Soluble particles do not settle down when left undisturbed	Soluble particles settle down when left undisturbed
Homogeneity	Homogeneous mixture	Heterogeneous mixture	Heterogeneous mixture
Example:	Salt solution	Milk	Sand in water