A solution of NaNO_3 , when treated with a mixture of Zn dust and ' A ' yields ammonia. ' A ' can be

Correct answer: (A) caustic soda. NaNO_3+4 Zn+(7 NaOH)/((A)) arrow 4 Na_2 ZnO_2+NH_3+2 H_2 O A is caustic soda

Q23 / 155 · WBJEE 2021 · Chemistry

A solution of $\mathrm{NaNO}_{3}$, when treated with a mixture of $\mathrm{Zn}$ dust and ' $\mathrm{A}$ ' yields ammonia. ' $\mathrm{A}$ ' can be

Correct answer
A
caustic soda
B
dilute sulphuric acid
C
concentrated sulphuric acid
D
sodium carbonate

Solution

$\mathrm{NaNO}_{3}+4 \mathrm{Zn}+\frac{7 \mathrm{NaOH}}{(\mathrm{A})} \rightarrow 4 \mathrm{Na}_{2} \mathrm{ZnO}_{2}+\mathrm{NH}_{3}+2 \mathrm{H}_{2} \mathrm{O}$ A is caustic soda

Hence, the correct answer is option: 'A'.

A solution of $\mathrm{NaNO}_{3}$, when treated with a mixture of $\mathrm{Zn}$ dust and ' $\mathrm{A}$ ' yields ammonia. ' $\mathrm{A}$ ' can be

Solution

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