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Separation of Substances — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceSeparation of Substances1 Mark
MCQ
Which of these methods could be used to separate an insoluble solid from a soluble solid?
  • ✓
    Mixing the mixture with water and then filtering it. Then we could evaporate the water from the resulting filtrate.
  • B
    Mixing the mixture with water and then filtering it. Then we could evaporate the sand from the resulting solid.
  • C
    Mixing the mixture with oil and then filtering it. Then we could evaporate the solid out.
  • D
    Both $(b)$ and $(c).$
✓

Answer

Correct option: A.
Mixing the mixture with water and then filtering it. Then we could evaporate the water from the resulting filtrate.

 Method given in option is the correct one. The soluble solid will dissolve in the water and the insoluble solid can be separated from the solution by filtration. Resulting filtrate on evaporation will give the insoluble solid.

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