In the reaction, 8Al+3Fe3O4→4Al2O3+9Fe, number of electrons transferred from reductant to oxidant is:
A
8
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B
4
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C
16
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D
24
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Solution
The correct option is D24 On balancing the charges of two half-reactions we get 8Al→8Al3++24e−(Oxidation half)9Fe83++24e−→9Fe(Reduction half)
Hence, 24 electrons are transferred from reductant to oxidant.