Question
Download Solution PDFWhich one among the following is an example of oxidation reaction?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Oxidation Reaction
- An oxidation reaction involves the loss of electrons by a molecule, atom, or ion.
- It often involves the addition of oxygen or the removal of hydrogen.
- Oxidation reactions are a fundamental part of redox (reduction-oxidation) reactions.
EXPLANATION:
- Freezing of water is a physical change and does not involve any oxidation or reduction.
- Dissolving sugar in water is a physical change and does not involve any oxidation or reduction.
- Rusting of iron is a chemical change that involves the oxidation of iron (Fe) to iron oxide (Fe2O3).
- Boiling of petrol is a physical change and does not involve any oxidation or reduction.
- Rusting of iron is the correct example of an oxidation reaction because iron (Fe) loses electrons and forms iron oxide (Fe2O3).
- Fe → Fe2+ + 2e-
- 4Fe + 3O2 + 6H2O → 4Fe(OH)3 (rust)
Therefore, the correct option is Rusting of iron.
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