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A solution of colourless salt H 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) H is (are)

Answer» <html><body><p>`NH_(4)NO_(<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>)`<br/>`NH_(4)NO_(2)`<br/>`NH_(4)<a href="https://interviewquestions.tuteehub.com/tag/cl-408888" style="font-weight:bold;" target="_blank" title="Click to know more about CL">CL</a>`<br/>`(NH_(4))_(2)SO_(4)`</p>Solution :The colourless salt H may be either `NH_(4)NO_(3)orNH_(4)NO_(2)` and the non-inflammable gas is `NH_(3)`<br/> (a) `NH_(4)NO_(3)+NaOHoverset(Delta)toNH_(3)+NaNO_(3)+H_(2)O` <br/> Non-inflammable gas <br/> `4Zn+7NaOH+NaNO_(3)overset(Delta)to4Na_(2)ZnO_(2)+NH_(3)+2H_(2)O` <br/> Sod. zincate Gas <a href="https://interviewquestions.tuteehub.com/tag/evolution-977684" style="font-weight:bold;" target="_blank" title="Click to know more about EVOLUTION">EVOLUTION</a> restarts <br/> (b) `NH_(4)NO_(2)+NaOHoverset(Delta)toNH_(3)+NaNO_(2)+H_(2)O` <br/> `3Zn+5NaOH+NaNO_(2)overset(Delta)to3Na_(2)ZnO_(2)+NH_(3)+H_(2)O`</body></html>


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