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प्रश्न
State any one method – to separate the following mixtures – Two solid mixtures one of which – directly changes into vapour on heating.
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उत्तर
The method used is sublimation: Sublimable solid sublimes on heating i.e. change into vapours and condense on cooling is separated leaving behind non – sublimable solid.
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संबंधित प्रश्न
Differentiate between:
pure and impure substances
Differentiate between the following
Supernatant liquid and Fill rate
How can you separate iron metal from non-magnetic impurities ?
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method.
Chalk powder from water
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method.
Calcium carbonate and sodium chloride
Give a reason for the following statement :
Zinc is considered an element, while zinc sulphide is considered a compound.
Very Short Answer Type Question:
You are given a mixture of salt and sand. Can you separate them by picking?
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 |
