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A solution of colourless salt H on boili...

A solution of colourless salt H on boiling with axcess `NaOH` produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H is (are)

A

`NH_(4)NO_(3)`

B

`NH_(4)NO_(2)^(–)`

C

`NH_(4)Cl`

D

`(NH_(4))_(2)SO_(4)`

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The correct Answer is:
A, B
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A solution of colourless salt on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt (s) is (are).

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