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When Kbr is treated with concentrated H(...

When `Kbr` is treated with concentrated `H_(2)SO_(4)` reddich brown gas evolved, gas is

A

Mixture of bromine and `HBr`

B

`HBr`

C

Bromine

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
`2KBr+3H_(2)SO_(4)+MnO_(2)overset(Delta)(rarr)2KHSO_(4)+MnSO_(4)+2H_(2)O+Br_(2)`
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A test tube containing a nitrate and another containing a bromide and MnO_(2) are treated with concentrated H_(2)SO_(4) . The reddish brown fumes evolved are passed through water. The water will be coloured by :

KBr, on reaction with conc. H_(2)SO_(4) , gives reddish-brown gas :

When compound (A) is treated with conc. H_(2)SO_(4) , a reddish brown colour gas (B) is evolved. To this solution, a solution of (C ) is added slowly from the side of the test tube, a blue ring is obtained at the junction of two layers due to formation of (D). Gas (B) may be :

When compound (A) is treated with conc. H_(2)SO_(4) , a reddish brown colour gas (B) is evolved. To this solution, a solution of (C ) is added slowly from the side of the test tube, a blue ring is obtained at the junction of two layers due to formation of (D). Compound (D) has formula :

When compound (A) is treated with conc. H_(2)SO_(4) , a reddish brown colour gas (B) is evolved. To this solution, a solution of (C ) is added slowly from the side of the test tube, a blue ring is obtained at the junction of two layers due to formation of (D).

A2Z-P BLOCK ELEMENTS ( GROUP 15,16,17,18)-Florine, Chlorine, Bromine, Iodine, And Halogen Acids (Preparation And Properties) (Group 17)
  1. On boiling an aqueous solution of KClO(3) with iodine, the following p...

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  2. Chlorine cannot be prepared by the action of HCl on

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  3. When Kbr is treated with concentrated H(2)SO(4) reddich brown gas evol...

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  4. Chlorine can remove

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  5. In K solution, I(2) readily dissolved and forms

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  6. Iodine is formed when potassium iodi9de reacts with a solution of

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  7. Pure chlorine is obtained:

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  8. Fluorine reacts with water to give

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  9. In the preparation of chlorine from HCl,MnO(2) acts as

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  10. chlorine can be manufactring from

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  11. HBr//HI are prepared by heating

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  12. When chlorine water is exposed to sunlight, O(2) is liberated. Hence

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  13. When cold NaOH reacts with Cl(2) which of the following is formed

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  14. Which has the highest heat of vaporisation?

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  15. Chlorine acts as a bleaching agent only in the presence of

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  16. In the manufacture of bromine from sea water the mother liquor contain...

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  17. A salt, which on heating with conc. H(2)SO(4) gives violet vapour is

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  18. Which of the following halogen acid is a liquid ?

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  19. A solution of HCl in water is good conductor while gaseous hydrogen ch...

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  20. Sodium chloride when heated with conc. H(2)SO(4) and solid potassium d...

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