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प्रश्न
Write answer to the following question in your own words.
How are the components of mixtures separated by simple methods?
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उत्तर
The components of mixtures are separated by simple methods like:
- Distillation: This approach separates miscible liquids depending on their boiling points. Simple distillation is used for liquids with widely differing boiling points, whereas fractional distillation is used when boiling points are close together. Distillation is often used to create fuel, distilled water, xylene, alcohol, paraffin, and kerosene.
- Separating funnels: This approach is used to separate immiscible liquids using density differences. It is commonly used to separate oil from water or other types of immiscible oils.
- Chromatography: This method separates colored components of a mixture by comparing their movement speeds on chromatography paper while dissolved in a solvent. Less soluble components travel slower and appear lower on paper, whereas more soluble components appear higher.
- Centrifugation: Mixtures are separated via centrifugation, which involves spinning them at high speeds. It is used to distinguish between skim milk and whole milk, water from clothes in a washing machine, and blood cells from plasma.
संबंधित प्रश्न
Which separation technique will you apply for the separation of the following?
Wheat grains from husk.
‘‘The properties of the product are different from those of the constituents''. State whether this statement best describes an element, a compound or a mixture.
What is a mixture ? Give two example of mixtures.
When a mixture of iron powder and sulphur powder is heated strongly to form iron sulphide, then heat energy is :
Give two examples of the following type of mixture.
solid-solid
Write “true” or “false” for the following statement
Salt and air dissolved in water add taste to water.
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.
Mixture has no definite set of properties.
How is a mixture of common salt, oil and water separated? You can use a combination of different methods.
Name the process associated with the following
Settling of sand when a mixture of sand and water is left undisturbed for some time.
