Question

8. Select a colloidal solution out of the following
a) gold ornaments. b) sand grains c) limewater
d) paint​

Answer 1

Answer:

lime water is the colloidal solution

Answer 2

Answer:

The answer is d) paint​.

Explanation:

Colloids exist as mixtures in which microscopically dispersed insoluble particles of one substance exist suspended in another substance. The size of the discontinued particles in a colloid can range from 1 to 1000 nanometers (10-9 meters).

• Gold ornaments are not a colloid because it stands solid in solid solutions.
• Sand grains stand not as colloids because they exist simple solid materials.
• Lime water exists also not a colloid because it stands as a true solution consisting of nitric acid as the solute and water as the solvent.

Hence, The correct answer is d) paint​.

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