Question

Explain the following giving examples
a) Saturated solution
b) Pure Substance
c) Colloid
d) Suspension ​

Answer 1

Explanation:

(a) The term saturated solution is used in chemistry to define a solution in which no more solvent can be dissolved. It is understood that saturation of the solution has been achieved when any additional substance that is added results in a solid precipitate or is let off as a gas.

Eg: Saltwater

(b) Pure substance: A material that is composed of only one type of particle.

Eg: Gold, oxygen and water.

(c) Colloid: A homogeneous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance.

Eg: Gels, sols and emulsions.

d) Suspension: A suspension is a heterogeneous mixture in which solute-like particles settle out of a solvent-like phase sometime after their introduction. We apply the word suspension when particles are big enough to eventually settle.

Eg: wheat flour and water.

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Answer 2

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a) Saturated solution :

• A saturated solution is a solution that contains the maximum amount of solute that is capable of being dissolved.

b) Pure substance :

• A pure substance is a sample of matter with both definite and constant composition and distinct chemical properties.

c) Colloid :

• A homogeneous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance.

d) Suspension :

• A suspension is a heterogeneous mixture of a fluid that contains solid particles sufficiently large for sedimentation.

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