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Is Matter Around Us Pure — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure3 Marks
Question
Which separation techniques will you apply for the separation of the following?
  1. The different pigments from an extract of flower petals.
  2. Butter from curd.
  3. Oil from water.
  4. Tea leaves from tea.
  5. Iron pins from sand.
  6. Wheat grains from husk.
  7. Fine mud particles floating in water.
✓

Answer

  1. Different pigments from an extract of flower petals.
  2. Butter from curd Centrifugation.
  3. Oil from water Using separating funnel.
  4. Tea leaves from tea Filtration.
  5. Iron pins from sand Magnetic Separation.
  6. Wheat grains from husk Winnowing.
  7. Fine mud particles suspended in water Centrifugation.

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