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When can Winnowing be used ?...

When can Winnowing be used ?

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VGS PUBLICATION-BRILLIANT-SEPARATION OF SUBSTANCES-EXERCISE
  1. Give some examples for hand picking method of separation.

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  2. Separate the grain from dust

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  3. When can Winnowing be used ?

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  4. What property helps in separating husk from grains?

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  5. Where do we use the chromatography method ?

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  6. How will you separate the tea-leaves from tea ?, Which property helped...

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  7. 1. Collect some solid materials such as ghee, wax, sand, sugar, salt, ...

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  8. Collect some solid materials such as ghee, wax, sand, sugar, salt, hal...

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  9. Collect some solid materials such as ghee, wax, sand, sugar, salt, hal...

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  10. Collect some solid materials such as ghee, wax, sand, sugar, salt, hal...

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  11. How do you separate mud and sand from muddy water ? What is sedimentat...

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  12. Explain the process of Crystallization.

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  13. How do you prepare distilled water? Explain the process of distilling ...

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  14. a) What is sublimation ? b) How do you demonstrate the sublimation of ...

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  15. what Is chromatography ?What are its uses?

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  16. How do you separate colour from a mixture of colours?

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  17. Draw a diagram of using filter paper to filter water.

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  18. Laxmi says that sedimentation and decantation are used at home while c...

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  19. We use sieves to separate tea-leaves from tea and sand from gravel. Wh...

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  20. With what liquid do doctors mix injection powder before administering ...

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