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The manufacture of fluorine is done by...

The manufacture of fluorine is done by

A

(1) heating anhydrous HF and `MnO_2`.

B

(2) electrolysis of aqueous HF.

C

(3) electrolysis of anhydrous HF mixed with `KHF_2`.

D

(4) heating a mixture of KF, `MnO_2` and conc. `H_2SO_4`.

Text Solution

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The correct Answer is:
C
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RESONANCE-P-BLOCK ELEMENTS (HALOGEN & NOBLE GASES)-APSP PART-1
  1. The manufacture of fluorine is done by

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  2. The catalyst used in Deacon's process is :

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  3. Which electrolyte is used in Dennis method for the preparation of fluo...

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  4. Chlorine is liberated, when we heat

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  5. An easy way of obtaining Cl2 gas in the laboratory is :

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  6. When chlorine reacts with turpentine oil, the product formed is

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  7. Which of the following does not decolourise iodine?

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  8. In the reaction 3Br(2) + 6CO(3)^(2-) + 3H(2)O to 5Br^(-) + 2BrO(3)^(...

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  9. A greenish yellow gas reacts with an alkin metal hydroxide to form a h...

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  10. Two gases X and Y bring about bleaching of flowers. X bleaches due to ...

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  11. Which of the following gases can be dried by conc. H2SO4 ?

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  12. H2SO4 cannot be used for obttaining HBr from KBr because :

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  13. Which of the following is the weakest acid?

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  14. Among the following which reaction is not correct:

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  15. Order of boiling point is:

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  16. Euchlorine is:

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  17. Consider the oxy acids HClOn series here value of n is 1 to 4. then i...

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  18. How many of the following are correctly match: (1) Cl2O - (a) yell...

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  19. The strongest acid amongst the following is :

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  20. Which of the following is not the characteristic of interhalogen compo...

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