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Corrosion

What is the e...

Question

What is the equation involved in the rusting of iron?

F e + 2 O_{2} \to F e_{3} O_{4}

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F e + 3 O_{2} \to 2 F e_{2} O_{3}

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F e + 3 O \to F e_{2} O_{3}

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F e + 4 O \to F e_{3} O_{4}

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Solution

The correct option is B 4 $F e + 3 O_{2} \to 2 F e_{2} O_{3}$
The chemical equation for rust formation is:
$4 F e + 3 O_{2} \to 2 F e_{2} O_{3}$
$4 F e^{2} + + 6 H_{2} O + O_{2} \to 4 F e (O H)_{3} + 8 H^{+}$

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F e_{3} O_{4}

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