In acid medium Zn reduces nitrate ion to ${\rm{NH}}_4^ + $ ion according to the reaction ${\rm{Zn}} + {\rm{N}}{{\rm{O}}_3}$, ${\rm{Z}}{{\rm{n}}^{2 + }} + {\rm{NH}}_4^ + + {{\rm{H}}_2}{\rm{O}}$ (unbalanced).How many moles of $HCl$ are required to teduce half a mole of ${\rm{NaN}}{{\rm{O}}_3}$ completely? Assume the availability of sufficient Zn.

NEET UG CHEMISTRY MCQ: REDOX REACTIONS

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In acid medium Zn reduces nitrate ion to

\mathrm{NH}_4^ +

ion according to the reaction

\mathrm{Zn} + \mathrm{N}{\mathrm{O}_3}

\mathrm{Z}{\mathrm{n}^{2 + }} + \mathrm{NH}_4^ + + {\mathrm{H}_2}\mathrm{O}

(unbalanced).How many moles of

HCl

are required to teduce half a mole of

\mathrm{NaN}{\mathrm{O}_3}

completely? Assume the availability of sufficient Zn.

View answer and explanation

Correct option: A

Option A (5) is correct because the balanced equation shows that 10 moles of HCl are required to reduce 1 mole of NaNO3 to NH4+, so 5 moles are needed for half a mole.

NEET UG CHEMISTRY MCQ: REDOX REACTIONS

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