Chemistry-Balancing Redox Reactions

NEET Chemistry Balancing Redox Reactions MCQ Question

Type: MCQ-numerical-Hard-Class 11

In the redox reaction 3Fe3O4(s)+8Al(s)9Fe(s)+4Al2O3(s)3Fe_3O_4(s) + 8Al(s) \rightarrow 9Fe(s) + 4Al_2O_3(s), what is the change in oxidation number for the element that gets oxidized?

A

0 to +3

B

0 to +2

C

0 to +1

D

0 to +4

Correct Answer

Option A

Detailed Explanation

In the reaction, aluminum is oxidized as it goes from 0 to +3 oxidation state when forming Al2O3Al_2O_3. This follows the concept of oxidation as the addition of oxygen.

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