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Explain how it is possible to separate g...

Explain how it is possible to separate gold from river sand.

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Separation of gold from silver sand car be carried out by allowing the sand to a swift stream of water. Sand particles being heavier and coarse settle down while the fine lighter gold particles float.
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PEARSON IIT JEE FOUNDATION-MYSTERY OF MATTER -TEST YOUR CONCEPTS (SHORT ANSWER TYPE QUESTION)
  1. Identify whether the following are elements or compounds or mixtures. ...

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  2. Identify whether the following are elements or compounds or mixtures. ...

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  3. Identify whether the following are elements or compounds or mixtures. ...

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  4. Identify whether the following are elements or compounds or mixtures. ...

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  5. Identify whether the following are elements or compounds or mixtures. ...

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  6. Mention the purposes for which separation of mixtures is important Giv...

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  7. The principle of separation of a mixture depends on which factors?

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  8. How does alum hasten the process of sedimentation.

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  9. Define the following Sedimentation

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  10. Define the following Decantation

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  11. Define the following loading

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  12. Define the following Distillation

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  13. Define the following Centrifugation

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  14. Explain how it is possible to separate gold from river sand.

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  15. Distinguish between residue and filtrate.

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  16. Explain the principle involved in centrifugation.

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  17. Which method is employed for the separation of constituents from a het...

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  18. Explain the process of separation of water and alcohol from their mixt...

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  19. A mixture of iron filings, saw dust and sugar is available . Explain t...

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  20. Explain the principle invovled in the making of coffee decoction.

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