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Salt A reacts with K(2)Cr(2)O(7) and con...

Salt A reacts with `K_(2)Cr_(2)O_(7)` and conc. `H_(2)SO_(4)` giving red fumes B,B when passed in `NaOH` giving colourless solution. Salt A is:

A

`Cl^(-)` salt

B

`Br^(-)` salt

C

`I^(-)` salt

D

`NO_(3)^(-)` salt

Text Solution

Verified by Experts

The correct Answer is:
B
`Br_(2)+OH^(-)rarr Br^(-)+BrO^(-)+H_(2)O`
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GRB PUBLICATION-SALT ANALYSIS-D.Class-A Subgroup-II Acidic Radicals
  1. Salt A reacts with K(2)Cr(2)O(7) and conc. H(2)SO(4) giving red fumes ...

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  2. A mixture of two colourless substances was dissolved in water. When g...

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  3. A test tube containing a nitrate and another containing a bromide and ...

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  4. An inorganic salt when heated with concentrated H(2)SO(4) evolves a co...

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  5. Chromyl chloride vapours are dissolved in water and acetic acid and ba...

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  6. When CS(2) layer containing both Br(2) " and" I(2) (2 : 1) is shaken w...

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  7. Which of the following will not give positive chromyl chloride test?

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  8. A white sodium salt dissolves readily in water to give a solution whic...

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  9. A one litre flask is full of reddish brown bromine fumes. The intensit...

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  10. Which of the following does not form volatile product with conc. H(2)S...

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  11. Unknown salt 'A'+K(2)Cr(2)O(7)+"conc. "H(2)SO(4) to Reddish brown fume...

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  12. Brown ring test is used to detect

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  13. Violet vapours are not given out when X is/are treated with conc. H(2)...

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  14. H(2)S(2)O(8)+2H(2)O rarr 2H(2)SO(4)+X which of the following statement...

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  15. Which of the following salt form yellowish green gas when treated with...

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  16. Which of the following gives chromyl chloride test?

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  17. Nitrite (NO(2)^(-)) interferes in the 'ring-test' of nitrate (NO(3)^(-...

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  18. Find the sum of number of sigma-bond in A,B and C.

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  19. Choose the incorrect statement:

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  20. The anion which does not produce diatomic gas on treatement with hot a...

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