Chemically , rust of iron is – InterviewSolution

1.	Chemically , rust of iron is
Answer» `Fe_(3)O_(4)` `FeO.xH_(2)O` `Fe_(2)O_(3).xH_(2)O` `Fe_(3)O_(4).xH_(2)O` Solution :`xH_(2)O` means different number of `H_(2)O` moles.

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