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If a piece of iron gains 10% of its weight due to partial rusting into `Fe_(2)O_(3)` the percentage of total iron that has rusted is:

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If a piece of iron gains 10% of its weight due to partial rusting into `Fe_(2)O_(3)` the percentage of total iron that has rusted is:
A. 23
B. 13
C. 23.3
D. 25.67
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Correct Answer - C
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