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Name the source from which nitrogen and ...

Name the source from which nitrogen and oxygen are obtained on a large scale.

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Air
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LAKHMIR SINGH & MANJIT KAUR-IS MATTER AROUND US PURE -Exercise
  1. Name one pair of liquids which can be separted by using a separating f...

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  2. State whether the following statements are true of false : (a) Alcoh...

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  3. Name the source from which nitrogen and oxygen are obtained on a large...

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  4. Name the process by which the various gases of the air are separted.

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  5. A carpenter wants to separted iron nails from saw-dust. Which method o...

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  6. Name any two solid substances whose mixture can be separted by sublima...

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  7. Name one pair of substances whose mixture can be separted completely b...

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  8. How will you separte a mixture of chalk powder and water?

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  9. Name the process which can be used to separte a mixture of salt soluti...

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  10. Name the process which can be used to recover salt from an aqueous sal...

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  11. Name the process which is used in milk daires to separte cream from mi...

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  12. State one application of centrifugation.

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  13. What is the general name of the process by which tea-leves are separat...

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  14. Name the process you would use to separte a mixture of water and alcoh...

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  15. Name the apparatus you would use to separate oil from water.

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  16. What differences in the properties of oid and water enable their separ...

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  17. (a) Name the process be which common salt is obtained from sea-water ...

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

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

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

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