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Air — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYAir1 Mark
MCQ
Rust is
  • A
    iron(Il) oxide
  • B
    iron (II) sulphate
  • ✓
    hydrated iron (III) oxide
  • D
    iron(Ill) sulpbatc
✓

Answer

Correct option: C.
hydrated iron (III) oxide
hydrated iron (III) oxide

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