Explain the following giving examples.
(a) saturated solution
(b)
pure substance
(c) colloid
(d) suspension
Answers
Explanation:
a) a solution in which no more solute at a given temperature can be dissolved is called saturated solution.
b) a substance in which no impurities are present is called a pure substance.
c) a colloid is a heterogeneous mixture. The particles of a colloid are uniformly spread. Because of the small size we cannot see the particles. They show Tyndall effect.
d) a suspension is a heterogeneous mixture in which the solute particles remain suspended throughout the bulk of the medium.
How this helps
Answer:
saturated solution:A solution which can not dissolve further amount of solute at a particular temperature is called saturated solution. For example, when you keep adding sugar to the water, a time will reach when no more sugar will dissolve in the water and sugar will settle down at the bottom.
pure substance: Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). The measure of whether a substance is pure is known as purity.
colloid:a homogeneous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance. Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension
suspension:A suspension is a heterogeneous mixture in which solute-like particles settle out of a solvent-like phase sometime after their introduction. We use the terms 'solute-like' and 'solvent-like' because we are dealing with a heterogeneous mixture, while the terms solute and solvent refer to homogeneous solutions.