Question

WHICH MATERIALS FALL IN CATEGORY OF A "PURE SUBSTANCE"?​

Answer 1

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• Ice, iron, hydrochloric acid, calcium oxide, mercury are pure substances as they have definite composition. Milk is a colloid and acts as a heterogeneous mixture hence is not a pure substance.

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Answer 2

Answer:

Ice, iron, hydrochloric acid, calcium oxide, mercury are pure substances as they have definite composition