Q4 of 15 Page 44

Match the following:

1-(c), 2-(a), 3-(d)


Explanation:


Sodium chloride is a compound formed by the elements sodium and chlorine.


Compounds belonging to the class of pure substances.


Milk is a colloid and colloids are heterogeneous mixtures which fall under the category of impure substances.


Air is a homogenous mixture consisting of various gases mixed uniformly such that one cannot distinguish the components of the mixture with naked eye or microscope.


More from this chapter

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3

Give a scientific reason for the following:

Ornamental gold is an example for the homogeneous mixture.

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Give a scientific reason for the following:

A mixture of sand and iron fillings is a heterogeneous mixture.

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Give a scientific reason for the following:

Water is called the universal solvent

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Give a scientific reason for the following:

When a beam of light is passed through a suspension, its path is visible.