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प्रश्न
How is a mixture of common salt, oil and water separated? You can use a combination of different methods.
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उत्तर
The mixture of common salt, oil and water are taken in a beaker. The salt dissolves in water. Allow it to stand for a few minutes. The mixture of two immiscible liquids is separated by a separating funnel. The oil floats on top. The water can carefully be separated by opening the stopcock in the separating funnel. The oil is left behind in the separating funnel.
The salt water is heated slowly, in a distillation flask with a water condenser. The pure water vapour passes through the inner tube of the condenser.
The vapours on cooling condense into pure water and are collected in a receiver. The salt is left behind in the flask as a residue.
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संबंधित प्रश्न
Define :- Immiscible liquids
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A mixture contains water, kerosene and sand. How will you separate this mixture ?
How will you separate common salt, sand and iron filings from their mixture ?
Give one example of the following type of mixture.
Solid-solid heterogeneous mixture
Match the statements in List I with the correct answer in List II.
| List I | List II |
| 1. Purification of water by adding alum | A: Sublimation |
| 2. Seawater leaving behind common salt | B: Sieving |
| 3. Separation of camphor and potassium chloride | C: Filtration |
| 4. Separation of charcoal from a charcoal-water mixture | D: Sedimentation |
| 5. Separation of bran and wheat flour | E: Evaporation |
State whether the following statement is true or false. If false write – the correct statement.
Components in a mixture can be separated by physical and chemical methods.
You are provided with a mixture containing sand, iron filings, ammonium chloride and sodium chloride. Describe the procedures you would use to separate these constituents from the mixture?
The salt solution is an example of a heterogeneous mixture.
