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Pure and impure matter: |
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Matter can be broadly classified into two parts, pure and impure.
Pure substances are those substances which consist of the same kind of particles.
Impure substances are those substances which consist of two or more elements or compounds in any proportion. |
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The following are the characteristics of pure substances: |
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 They consist of the same type of particles. |
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They have the same composition throughout. |
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They have characteristic properties which are definite. |
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They are always homogeneous. |
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