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प्रश्न
Visit a nearby paddy field and rice mill and note down the different separating techniques used there. Is technology replacing some traditional practices?
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उत्तर
Do it yourself.
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संबंधित प्रश्न
Differentiate between the following
Supernatant liquid and Fill rate
What is centrifugation ? Also write the principle on which it works.
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method.
Water and alcohol
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method.
Sodium chloride and potassium nitrate
Explain with a diagram the process used to – separate the following substance from the given mixture.
Lead carbonate [insoluble] from a mixture of – lead carbonate & water.
Select the correct answer from the choice given below to complete the sentence :
The reactive element from the two monoatomic elements is _____________.
Give a reason for the following statement :
Zinc is considered an element, while zinc sulphide is considered a compound.
How can you separate a large quantity of tiny bits of paper mixed with pulses/dal?
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 |
State whether the following statement is true or false.
A mixture of oil and water can be separated by filtration.
