Is Matter Around Us Pure? · Class 9 · CBSE Science

Which of the following materials falls into the category of a pure substance according to the classification of matter in chemistry?

Practice question from Is Matter Around Us Pure? (Class 9 · CBSE Science), with the correct answer and a step-by-step solution.

easy · MCQ · Q-3409E3

Which of the following materials falls into the category of a pure substance according to the classification of matter in chemistry?

  1. A.Sea water
  2. B.IceCorrect answer
  3. C.Air
  4. D.Soil

Solution

A pure substance consists of only one type of constituent particles that have the same chemical properties. Ice is a solid form of water (H2OH_2O), which is a chemical compound with a fixed composition. Sea water, air, and soil are mixtures.

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