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Laxmi says that sedimentation and decant...

Laxmi says that sedimentation and decantation are used at home while cleaning rice and pulses for cooking. Describe the sediments in this process.

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Assertion (A) : The process of settling of heavier insoluble particles from a suspension of a substance in water known as decantation. Reason (R) : This process along with sedimentation is used to get clear water from muddy water.

VGS PUBLICATION-BRILLIANT-SEPARATION OF SUBSTANCES-EXERCISE
  1. How do you separate colour from a mixture of colours?

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

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

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

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

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  6. What is a mixture ? Give examples.

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

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

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

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

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

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

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

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

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

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

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  17. How is salt manufactured ?

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  18. Solid form of carbondioxide is

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  19. In the Middle Ages, salt is referred to as

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  20. A solid directly changing Into vapour

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