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Chemistry Question on Redox reactions

For the redox reaction, Zn+NO3−⟶Zn2++NH4+Zn + NO _{3}^{-} \longrightarrow Zn ^{2+}+ NH _{4}^{+} in basic medium, coefficients of Zn,NO3−Zn , NO _{3}^{-}, and OH−OH ^{-}in the balanced equation respectively, are

A

39173

B

37076

C

40269

D

40182

Answer

40269

Explanation

Solution

4Zn+NO3−+7H2O⟶4Zn2++NH4++10OH−4 Zn + NO _{3}^{-}+7 H _{2} O \longrightarrow 4 Zn ^{2+} + NH _{4}^{+}+10OH ^{-}