Chemistry
Grade-8
Easy
Question
Observe the given reaction carefully and identify (i), (ii), (iii), and (iv).
(i)
(ii)
(iii)
(iv)
Undergoes reduction
Oxidation
Reduction
Undergoes oxidation
(i)
(ii)
(iii)
(iv)
Undergoes oxidation
Reduction
Oxidation
Undergoes reduction
(i)
(ii)
(iii)
(iv)
Undergoes reduction
Reduction
Oxidation
Undergoes oxidation
(i)
(ii)
(iii)
(iv)
Undergoes oxidation
Oxidation
Reduction
Undergoes reduction
| (i) | (ii) | (iii) | (iv) |
| Undergoes reduction | Oxidation | Reduction | Undergoes oxidation |
| (i) | (ii) | (iii) | (iv) |
| Undergoes oxidation | Reduction | Oxidation | Undergoes reduction |
| (i) | (ii) | (iii) | (iv) |
| Undergoes reduction | Reduction | Oxidation | Undergoes oxidation |
| (i) | (ii) | (iii) | (iv) |
| Undergoes oxidation | Oxidation | Reduction | Undergoes reduction |
Hint:
C
The correct answer is:
(i)
(ii)
(iii)
(iv)
Undergoes reduction
Reduction
Oxidation
Undergoes oxidation
The oxidation number of Fe decreases from +3 to 0. The oxidation number of C increases from +2 to +4.
Fe2O3 is reduced and undergoes reduction while, CO is oxidized and undergoes Oxidation.
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