NCERT Ex Q10 - Is Matter Around Us Pure?
Question: Classify the following into elements, compounds and mixtures. (a) Sodium (b) Soil (c) Sugar solution (d) Silver (e) Calcium carbonate (f) Tin (g) Silicon (h) Coal (i) Air (j) Soap (k) Methane (l) Carbon dioxide (m) Blood
Answer: Elements: a, d, f, g. Compounds: e, k, l. Mixtures: b, c, h, i, j, m.
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