In the reaction, 8Al+3Fe3O4→4Al2O3+9Fe, the number of electrons transferred from reductant to oxidant is:
A
8
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
7
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
24
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is D
24
Elemental metallic Aluminium carries an oxidation number of 0. From the products, we see that 0Al becomes 3+Al3+. Clearly, Aluminium is the reducing agent.
There are 8 Aluminium atoms on the left and they all become Al3+. So overall, there are 24 electrons transferred.