On the basis of composition of matter, milk is considered to be :

(a) a pure substance (b) an impure substance (c) an element (d) a compound

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Solution

(b) an impure substance

Explanation: Milk is a colloidal (heterogeneous mixture) as particles of fat are distributed in milk (not uniformly)

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CHOOSE THE BEST OPTION:

STATEMENT 1: A pure substance consists of a single type of matter.

STATEMENT 2: A pure substance consists of more than one type of matter.

STATEMENT 3: Milk is a not a pure substance.

STATEMENT 4: Pure substance has same chemical nature.

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