Question

how can we check whether the given solid substance is pure or not​

Answer 1

Answer:

To determine if a substance is pure in school laboratories, we cancheck the substance's melting or boiling points or use chromatography (see Separation Techniques). A pure solid has a constant/fixed melting point. ie. it will melt completely at one temperature only.

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Answer 2

Answer:

To determine if a substance is pure in school laboratories, we can check the substance's melting or boiling points or use chromatography (see Separation Techniques). A pure solid has a constant/fixed melting point. ie. it will melt completely at one temperature only.