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प्रश्न
Why do we separate mixtures?
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उत्तर
A mixture is an impure substance and contains more than one kind of particles. So, we have to separate mixtures.
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संबंधित प्रश्न
Write true or false
Handpicking can be used as a separation technique if the particle size of the constituents of the mixture is the same.
Name two methods by which solid-solid mixtures can be separated.
State any one method – to separate the following mixtures – Two solid mixtures one of which – directly changes into vapour on heating.
State any one method – to separate the following mixtures – A gas-gas mixture containing – two gases with different densities.
How can husk or fine dust particles be separated from rice before cooking?
Using suitable apparatus from your laboratory separate the mixture of chalk powder, mustard oil, water, and coins. Draw a flow chart to show the separation process.
Visit a nearby paddy field and rice mill and note down the different separating techniques used there. Is technology replacing some traditional practices?
Name the apparatus that you will use to separate the components of mixtures containing two,
- miscible liquids,
- immiscible liquids
Name the components in each of the following mixtures.
- Ice cream
- Lemonade
- Air
- Soil
Match the following
| Column A | Column B | ||
| 1. | Separation of salt from saltwater | a. | Magnetic separation |
| 2. | Separation of tea leaves from tea extract | b. | Evaporation |
| 3. | Separation of sand and iron filings | c. | Churning |
| 4. | Separation of butter from curds | d. | Filtration |
