1. Tardigrade
  2. Question
  3. Chemistry
  4. A solution of a colourless salt (s) on boiling with excess NaOH produces a non-inflammable gas. The evolution of gas ceases after sometime and upon addition of zinc dust to the same solution, the evolution of gas restarts. The colourless salt(s) is/(are):

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Q. A solution of a colourless salt (s) on boiling with excess $NaOH$ produces a non-inflammable gas. The evolution of gas ceases after sometime and upon addition of zinc dust to the same solution, the evolution of gas restarts. The colourless salt(s) is/(are):

The p-Block Elements - Part2

Solution:

$NH _{4} NO _{3}+ NaOH \rightarrow NaNO _{3}+ NH _{3}+ H _{2} O$

$4 Zn +7 NaOH + NaNO _{3} \rightarrow 4 Na _{2} ZnO _{2}+ NH _{3}+2 H _{2} O$

$NH _{4} NO _{2}+ NaOH \rightarrow NaNO _{2}+ NH _{3}+ H _{2} O$

$3 Zn +5 NaOH + NaNO _{2} \rightarrow 3 Na _{2} ZnO _{2}+ NH _{3}+ H _{2} O$