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Which amongst the following reactions ca...

Which amongst the following reactions cannot be used for the preparation of the halogen acid ?

A

`2KBr + H_2SO_4 (conc.)to K_2SO_4 +2HBr`

B

`2NaCl +H_2SO_4(conc.)to NaHSO_4 + HCl`

C

`NaHSO_4 + NaCl to Na_2SO_4 +HCl`

D

`CaF_2 + H_2SO_4 (conc.) to CaSO_4 + 2HF`

Text Solution

Verified by Experts

The correct Answer is:
A
Conc. `H_2SO_4` cannot be used for the preparation of HBr and HI This is because conc. `H_2SO_4` can easily oxidise HBr and HI to `Br_2` and `I_2` respectively
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DINESH PUBLICATION-THE HALOGEN FAMILY-REVISION
  1. Iodine readily dissolves in potassium iodide solution giving

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  2. Which of the following halogen oxides is ionic?

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  3. Which amongst the following reactions cannot be used for the preparati...

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  4. Which of the following hydrogen halide has the highest boiling point?

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  5. Which member of the halogen family (X) does not show oxidation state o...

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  6. Which one of the following is correct order of the size of iodine spec...

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  7. Hydrogen fluorine is a lipid unlike other hydrogen halides because

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  8. Which of the following is a false statement ?

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  9. Which of the following arrangement for the three halogens Cl, Br and I...

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  10. Oxidising action increases in halogen in the following order

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  11. Which of the following halogens has metallic character ?

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  12. the bleaching action of chlorine is due to

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  13. As the atomic number of halogens increases. The halogens

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  14. Which statement is correct about halogens ?

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  15. Which has the highest molar heat of vaporisation?

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  16. Which one of the following reacts with glass ?

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  17. A 500 g toothpaste sample has 0.2 g fluoride concentration. What is th...

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  18. The type of bonding in HCl molecule is

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  19. Which of the following bonds will be most polar?

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  20. Elements of which of the following groups will form anions most readil...

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