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Question: Answered & Verified by Expert
A solution of $\mathrm{NaNO}_{3}$, when treated with a mixture of $\mathrm{Zn}$ dust and ' $\mathrm{A}$ ' yields ammonia. ' $\mathrm{A}$ ' can be
Chemistryp Block Elements (Group 15, 16, 17 & 18)WBJEEWBJEE 2021
Options:
  • A caustic soda
  • B dilute sulphuric acid
  • C concentrated sulphuric acid
  • D sodium carbonate
Solution:
1527 Upvotes Verified Answer
The correct answer is: caustic soda
$\mathrm{NaNO}_{3}+4 \mathrm{Zn}+\frac{7 \mathrm{NaOH}}{(\mathrm{A})} \rightarrow 4 \mathrm{Na}_{2} \mathrm{ZnO}_{2}+\mathrm{NH}_{3}+2 \mathrm{H}_{2} \mathrm{O}$
A is caustic soda

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