Question

differentiate between pure substance and impure substance with example.

Answer 1

a pure substance is a substance which have only one kind of particle ! eg- oxygen atom

whereas an impure substance have two or more than two particle!
eg- ch4

Answer 2

A pure element or compound contains only one substance, with no other substances mixed in. Impure materials may be mixtures of elements, mixtures of compounds, or mixtures of elements and compounds.
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