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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
What is rust? Write the chemical formula.
✓

Answer

Due to moisture and various components of atmosphere, oxidation of iron takes place. A certain type of reddish coloured solid layer collects on the iron surface. This layer is called rust. The chemical formula is
$Fe_2O_3. XH_2O$.

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