Difference between pure and impure substances with examples.
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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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Explanation:
Pure substances:-
1. They have fixed composition
2. Their constituents cannot be separated by physical methods
3. Example- gold and silver
Impure substance (Mixture) :-
1. They have variable composition
2. Two or more substance mix together in any ratio to give mixture
3. Example -milk ,tea, etc
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