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(a) Name the process by which all the dy...

(a) Name the process by which all the dye can be recovered from black ink.
(b) Name the process by which the various 'days' (coloured materiais) present in black ink can be separted.

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The correct Answer is:
(a) Evaporation (b) Chromatography
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LAKHMIR SINGH & MANJIT KAUR-IS MATTER AROUND US PURE -Exercise
  1. (a) Name the process be which common salt is obtained from sea-water ...

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  2. Name the process which can be used to purify an impure sample of coppe...

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  3. (a) Name the process by which all the dye can be recovered from black ...

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  4. Which techique is used in a washing machine to squeeze our water from ...

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  5. Which technique can be used to detect and identify traces of poison pr...

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  6. Fill in the following blanks with suitable words: (a) Miscible liqui...

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  7. How will you separte a mixture containing sand and sugar ?

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  8. What difference in the properties of common salt and sand would enable...

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  9. Describe a method to separte a mixture of common salt and sand.

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  10. How would you separte a mixture of sugar and salt?

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  11. How will you separte a mixture of sand and potash alum.

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  12. Write a method to separte mixture of sand and potash alum.

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  13. How would you obtain sodium chloride from a mixture of sodium choride ...

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  14. How would you separate iodine from a mixture of iodine and common salt...

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  15. Describe a method to separte a mixture of camphor and sand.

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  16. How will you separte a mixture of iron filings and powdered carbon ?

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  17. How will you separte a mixture of iron filing and sulphur powder witho...

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  18. How is scrap iron separted from a heap of waste meterials in factories...

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  19. How is the impurity of iron present in several substances removed in i...

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  20. How will you separte iron pins from sand ?

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