Redox Reactions And Electrochemistry Question 204

Question: For the redox reaction $ Mn{{O}^{-}}_4 $ $ + $ $ C_2O_4^{2-} $ $ + $ $ {{H}^{+}} $ $ \to M{{N}^{2+}} $ $ +CO_2 $ $ +H_2O $ the correct coefficients of the reactants for the balanced reaction are

Options:

A)

$ MnO_4^{-} $ $ C_2O_4^{2-} $ $ {{H}^{+}} $
2 5 16

B)

$ MnO_4^{-} $ $ C_2O_4^{2-} $ $ {{H}^{+}} $
16 5 2

C)

$ MnO_4^{-} $ $ C_2O_4^{2-} $ $ {{H}^{+}} $
5 16 2

D)

$ MnO_4^{-} $ $ C_2O_4^{2-} $ $ {{H}^{+}} $
2 16 5
Show Answer

Answer:

Correct Answer: A

Solution:

[a] The balance equation is $ 2MnO_4^{2-}+5C_2O_4^{2-}+16{{H}^{+}}\to 2M{{n}^{2+}}+10CO_2+8H_2O $