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Which of the following salt would give S...

Which of the following salt would give `SO_2` with hot and dil. `H_2 SO_4` and also decolourise `Br_2` water?

A

`Na_(2)SO_(3)`

B

`NaHSO_(4)`

C

`Na_(2)SO_(4)`

D

`Na_(2)S`

Text Solution

Verified by Experts

`Na_(2)SO_(3) +H_(2)SO_(4) to Na_(2)SO_(4) + SO_(2)uarr+H_(2)O` sodium sulphate decolourises bromine water
`Br_(2)+H_(2)O to 2HBr + underset("Colourless")([O])`
`Na_(2)SO_(3)+[O] to Na_(2)SO_(4)`
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DINESH PUBLICATION-PRINCIPLES RELATED TO PRACTICAL CHEMISTRY-RQ
  1. Microcosmic salt is

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  2. The ion which is not precipitated by H2 S in the presence of HCl is

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  3. Which of the following salt would give SO2 with hot and dil. H2 SO4 an...

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  4. A salt which gives CO2 with hot H2 SO4 and also decolourizes acidified...

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  5. Which of the following precipitates does not dissolve even in large ex...

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  6. The reagent NH4 Cl and aqueous NH3 will precipitate

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  7. Cu^(2+) ions will be reduced to Cu^(+) ions by the addition of an aque...

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  8. AgCl is soluble in

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  9. A substance on treatment with dil. H2 SO4 liberates a colourless gas w...

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  10. In which of the following solvents, AgBr will have the highest solubil...

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  11. When copper nitrate is strongly heated, it is converted into

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  12. The salt insoluble in cold water but soluble in boiling water is

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  13. On the addition of a solution containing CrO(4)^(2-) ions to the solut...

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  14. A pale green crystalline metal salt of M dissolves freely in water. It...

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  15. Turn bull's blue is a compound

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  16. Sodium borate on reaction with conc. H2 SO4 and C2 H5 OH gives a compo...

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  17. On addition of aqueous NaOH to a salt solution, a white gelatinous pre...

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  18. Brown ring test is used to detect

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  19. Metal halide insoluble in water is

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  20. When K2 Cr2 O7 crystals are heated with conc. HCl, the gas evolved is

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