10. Exercises IV

 

 

(a). Saturated solution: A solutionpure substancesuspensioncolloidal becomes saturated if the solutecolloidalsubstancesolution starts separating at the bottom of the container in which the solution is being prepared at a given temperature. A saturated solution generally becomes unsaturated upon heating.

 

(b). Pure substance: A pure substancesuspensioncolloidalsolution means a single substance (or matter) that cannot be separated into other kinds of matter by any physicalthermalfilterationchemical process.

 

(c). Colloid: Colloidal solutions are also heterogeneous in nature like solutionspure substancessuspensionscolloidals, but they have smaller sizes of the particles which are distributed. It ranges between 1 nm to 100 nm, i.e., the particle shapemasssizevolume of true solution and suspension.

 

(d). Suspension: A colloidalpure substancesuspensionsolution may be defined as a heterogeneous mixture in which the solidgasvapourliquid particles are spread throughout the liquid without dissolving in it. They settle as precipitate if the suspension is left undisturbed for some time.