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Is Matter Around Us Pure? — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure?2 Marks
Question
Classify the following into elements, compounds and mixtures: Marble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, Sea-water, chalk.
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Answer

  • Elements: Gold, Diamond, Graphite.
  • Compounds: Common salt, Sea water, Marble.
  • Mixtures: Brass, Sand, Petroleum, Chalk, Air.

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