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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

NTA Abhyas 2020 · Chemistry · p Block Elements (Group 13 & 14)

In the reaction, 8Al + 3F e _ 3 O _ 4 → 4A l _ 2 O _ 3 + 9Fe, the...

In the reaction, 8Al+3Fe3O4→4Al2O3+9Fe,8Al + 3F{e}_{3}{O}_{4} \to 4A{l}_{2}{O}_{3} + 9Fe, the number of electrons transferred from reductant to oxidant is

Correct answer

24

Step-by-step solution

12H2O+8Al→4Al2O3+24H++24e−12{H}_{2}O + 8Al \to 4A{l}_{2}{O}_{3} + 24{H}^{+} + 24{e}^{-}
24H++3Fe3O4+24e−→9Fe+12H2O24{H}^{+} + 3F{e}_{3}{O}_{4} + 24{e}^{-} \to 9Fe + 12{H}_{2}O
24 electrons are transferred from reductant to oxidant.
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