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Name the various noble gases....

Name the various noble gases.

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MBD-IS MATTER AROUND US PURE-Example
  1. How would you obtainpure ammonium chloride whenit contains potassium c...

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  2. Name three metals which are liquids at room temperature.

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  3. Name the various noble gases.

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  4. Which of the following statements are correct and which are incorrect ...

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  5. Which of the following statements are correct and which are incorrect ...

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  6. Which of the following statements are correct and which are incorrect ...

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  7. Which of the following statements are correct and which are incorrect ...

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  8. Which of the following statements are correct and which are incorrect ...

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  9. If you are given a mixture of hydrogen and carbon dioxide, how would y...

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  10. Give two pieces of evidence that sodium chloride is a compound.

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  11. Give reasons to show that ammonia is a compound.

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  12. Give three reasons why air is considered a mixture and not a compound.

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  13. Define crystallisation. Give its importance.

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  14. Some reduced iron filings and powdered roll sulphur are well mixed and...

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  15. What are exothermic and endothermic reactions ?

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  16. What is the importance of evaporation ?

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  17. What are the applications of centrifugation ?

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  18. How will you separate a mixture of Iodine and sand ?

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  19. How will you separate a mixture of Ammonium chloride and common salt ?

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  20. How will you separate a mixture of Carbon disulphide and water

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