(a) What is meant by a solution? Give two examples of solutions.(b) What is a suspension? Give two examples of suspensions.(c) What is a colloid? Give two examples of colloids (or colloidal solutions)

Academic Chemistry NCERT Class 9

(a) A solution is a homogeneous mixture of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent. The solvent dissolves the solute in it.

Example-

Salt solution
Metal alloys.

(b) A suspension is a heterogeneous mixture in which the small particles of a solid are spread throughout a liquid without dissolving in it.

Example-

Muddy-water
Milk of magnesia.

(c) A colloid is a kind of solution in which the size of solute particles is intermediate between those in true solutions and those in suspensions, i.e., between 1 nm to 100 nm. Like true solutions, colloidal particles are small enough and cannot be seen through the naked eye.

Example-

Soap solution
Milk

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Updated on: 10-Oct-2022

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