Correct Answer: Option B

Explanation

2Fe₂O₃ → 4Fe + 3O₂
320g 224g 96g
(70) / (100) x (80) / (1) 56g
if 0.32kg of Fe₂9₃ contains 0.224 kg
Then 56kg will contain (56 x 0.224) / (0.32) =39.2 kg

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