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Question

Identify the method used to separate the following mixtures -

  1. Water, Kerosene and Sand
  2. Common salt, Sand and Iron filings
  3. Common salt, Sulphur Powder and Sand
  4. Nitrogen, Oxygen and Argon from air
  5. Camphor and Sand
  6. Chalk Powder, Iron filings and Naphthalene
  7. Kerosene and Petrol
  8. Sand, Water and Mustard oil.

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Solution

MixtureMethod for separation
  1. Water, Kerosene and Sand
Filtration followed by decantation
  1. Common salt, Sand and Iron filings
Magnetic separation followed by sublimation
  1. Common salt, Sulphur Powder and Sand

Filtration followed by evaporation of the solution of the mixture in water

  1. Nitrogen, Oxygen and Argon from air
Fractional distillation
  1. Camphor and Sand
Sublimation
  1. Chalk Powder, Iron filings and Naphthalene
Magnetic separation followed by sublimation
  1. Kerosene and Petrol
Fractional distillation
  1. Sand, Water and Mustard oil.
Decantation followed by filtration

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