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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

The correct Answer is:
A
`Na_(2)SO_(3)+2H_(2)SO_(4)rarr2NaHSO_(4)+H_(2)O+SO_(2)`
`Na_(2)SO_(3)+Br_(2)+2H_(2)Orarr2HBr+Na_(2)SO_(4)`
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NARAYNA-QUALITATIVE ANALYSIS-Level -VI
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  6. Which of the following statements is correct ?

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  8. When measured amount of CN^(-) is added to a solution of Cu^(2+) ions ...

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  9. Which of the following statements is incorrect ?

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  20. The missing product in the reaction Mg^(2+)+HPO(4)^(2-)+NH(4)OH rarr...

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