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Question
Assertion: pure iron when heated in dry air is converted with a layer of rust.
Reason: Rust has the compositionFe3O4.
Options
if both assertion and reason are true and reason is the correct explanation of assertion.
if both assertion and reason are true but reason is not the correct explanation of assertion.
assertion is true but reason is false.
both assertion and reason are false.
Solution
both assertion and reason are false.
Explanation:
Both are false
- Dry air has no reaction with iron
- Rust has the composition \[\ce{Fe2O3.{x} H2O}\]
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