2 moles of F e S O 4 in acid medium are oxidized by x moles of K M n O 4 , whereas 2 moles of F e C 2 O 4 in acid medium are oxidized by y moles of K M n O 4 . The ratio of x and y is

Question

2 moles of F e S O 4 in acid medium are oxidized by x moles of K M n O 4 , whereas 2 moles of F e C 2 O 4 in acid medium are oxidized by y moles of K M n O 4 . The ratio of x and y is, 1 3, 1 2, 1 4, 1 5

MARKS App · Accepted Answer

F e 2 + → F e 3 + + e M n 7 + + 5 e → M n 2 + 5 m o l e F e S O 4 ≡ 1 m o l e M n 7 + 2 m o l e F e S O 4 ≡ 2 5 = x Also F e 2 + → F e 3 + + e C 3 + 2 → 2 C 4 + + 2 e M n 7 + + 5 e → M n 2 + 5 m o l e F e C 2 O 4 = 3 m o l e M n 7 + 2 m o l e F e C 2 O 4 = 3 5 × 2 = y x y = 1 3

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