Q.

For the redox reaction :MnO4−+Fe2++H+⟶Mn2++Fe3++H2Othe correct stoichiometric co-efficients of MnO4−  , Fe2+ and H+ are :

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a

2, 4, 6

b

1, 3, 14

c

1, 5, 8

d

1, 8, 5

answer is C.

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Detailed Solution

MnO4−+8H++5e−⟶Mn2++4H2OFe2+⟶Fe3++e−×5Adding MnO4−+5Fe2++8H+⟶Mn2++5Fe3++4H2O                                                                                        …(1)∴ Correct stoichiometric co-efficients of MnO4,− Fe2+ and H+ in the reaction (1) are, 1, 5, 8.
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