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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
What are the characteristic properties of a pure substance? Why do we need them?
Define the following:
Impure substance
Name the components present in the following mixture:
Bronze
Give one example of the following type of mixture.
Solid-solid heterogeneous mixture
Give one example of the following type of mixture.
Solid-liquid homogeneous mixture
Write “true” or “false” for the following statement
Salt and air dissolved in water add taste to water.
Write “true” or “false” for the following statement
Common salt is separated from its solution in water by decantation.
A mixture of chloroform and water are taken in a separating funnel is mixed and left undisturbed for some time. The upper layer in the separating funnel will be of ______ and the lower layer will be that of ______.
Mixtures are impure substances.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
