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a) What is sublimation ? b) How do you d...

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

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VGS PUBLICATION-BRILLIANT-SEPARATION OF SUBSTANCES-EXERCISE
  1. Explain the process of Crystallization.

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

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

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  4. what Is chromatography ?What are its uses?

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

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

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

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

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

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  10. What is a mixture ? Give examples.

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  11. Identify the mixtures among the following: Jangree, coffee, sand, hald...

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  12. Sand in water , salt water , oil in water , stones in grains , mixture...

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  13. How do farmers separate grains which are bigger in size from the small...

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  14. What is a Filter paper made of ? For what purpose is it useful?

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  15. Can you separate mud from muddy water using a sieve?

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  16. Is water clean after the mud water is sieved with filter paper?

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  17. Can you filter mud water using a filter paper ?

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  18. After using the filter paper to filter water what do you find ? What d...

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  19. Are you able to separate the sait from the salt water with a filter pa...

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  20. Why could you not filter the salt from salt water?

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