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P-1 Chemical reactions and equations — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Chemical reactions and equations2 Marks
Question
How does rusting of iron occur?
✓

Answer

Iron when exposed to moist air forms a reddish layer of hydrated ferric oxide.
$
2 Fe +3 O _2+x H _2 O \longrightarrow 2 Fe _2 O _3, x H _2 O
$
Ferric oxide (rust)

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