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Give two advantages of paper chromatogra...

Give two advantages of paper chromatography.

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MBD-IS MATTER AROUND US PURE-Example
  1. Name a mixture used : in the construction of buildings

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  2. Name a mixture used : as a food

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  3. Give two advantages of paper chromatography.

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  4. How would you obtain a sample of sulphur from a mixture of sulphur and...

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  5. How would you obtainpure ammonium chloride whenit contains potassium c...

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

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  7. Name the various noble gases.

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

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

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

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

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

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

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

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

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

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  17. Define crystallisation. Give its importance.

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

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  19. What are exothermic and endothermic reactions ?

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  20. What is the importance of evaporation ?

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