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Chemically rust of iron is (A) hydrated ferrous oxide (B) hydrated ferric oxide (C) only ferric oxidAITS & Test Series Chemistry Question

Question

Chemically rust of iron is (A) hydrated ferrous oxide (B) hydrated ferric oxide (C) only ferric oxide (D) a mixture of ferric oxide with a little of Fe(OH)3

Answer: B) HYDRATED FERRIC OXIDE
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