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Sir pls explain the question to me and help me in the solution. In the reaction , Al +Fe3O4 – Al2O4+Fe, the number of electrons transferred from the reductant to oxidant is- A-8 electrons. B-4electrons C-24electrons. D-18electrons Does it mean transfer of electrons from al to fe3o4? Pls explain it to me. Thanks Jai

Sir pls explain the question to me and help me in the solution.
In the reaction , Al +Fe3O4 – Al2O4+Fe, the number of electrons transferred from the reductant to oxidant is-
A-8 electrons.     B-4electrons
C-24electrons.     D-18electrons
Does it mean transfer of electrons from al to fe3o4? Pls explain it to me.
Thanks
Jai

Grade:12

1 Answers

KIRAN
39 Points
9 years ago
I think the answer is 8 electrons.
                      2Al + Fe3O4---------> Al2O4 + 3Fe
ox.state:            0   +8/3                +4           0
1 Al should lose 4 e- to gain a oxidation state of +4 hence 2Al should lose 8 e- & Al is reductant. the oxidant Fe should gain 8e- to change its oxidatin number to 0. so the 8 electrons lost by Aluminium will be gained by Fe hence the number of electrons transferred is 8. Its transfer of electrons from Al to Fe+8/3. U just concentrate on the atoms which gets oxidised or reduced. thank you
 
Kiran

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