Question

IV. Answer the following questions in detail:
1. Classify the following as pure substances or mixtures. In case of pure substances, classify
whether they are element or compound but in case mixture, identify whether there are
homogeneous or heterogeneous.
Air, milk, graphite, gasoline, tap water, distilled water, brass, oxygen, steel, iron, diamond,
sodium chloride, iodised table salt, silver​

Answer 1

1. air is a mixture
2. milk is a mixture
3. tap water- pure substance