Question 7 — How would you separate - Questions at the end of the chapter - Chapter 5 - Exploring Mixtures and their Separation (Exploration)

Last updated at June 28, 2026 by

How would you separate the mixtures in Table 5.3? Give the method and the reason. If a mixture cannot be separated, explain why.
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Mixture Method Reason
Mud from muddy water Filtration / sedimentation Mud particles are large and undissolved.
Plasma from blood Centrifugation Spinning settles the heavier blood cells.
Naphthalene and sand Sublimation Naphthalene sublimes; sand does not.
Chalk powder and common salt Dissolve and filter Salt dissolves in water; chalk does not.
Common salt and water Evaporation / distillation Salt is dissolved; remove or recover the water.
Oil from water Separating funnel They are immiscible with different densities.
Pigments of the flower Paper chromatography Pigments move at different rates on paper.
← Back to concept: 5.4 Separating heterogeneous mixtures
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