Assertion :The two $F e$ atoms in ${F e}_{3} O_{4}$ have different oxidation numbers. Reason: ${F e}^{2 +}$ ions decolourise $K M n O_{4}$ solution.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
${F e}_{3} O_{4} \equiv (+ 2 F e O \cdot_{2} O_{3})$
The oxidation states of $F e$ in $F e O$ and ${F e}_{2} O_{3}$ are +2 and +3.
Also,
${F e}^{2 +} + M n O_{4}^{⊖} ⟶ {F e}^{3 +} + {M n}^{2 +}$
(Pink) (Colourless)
$F e^{2 +}$ decolourises $M n O_{4}^{-}$ .
Both assertion and reason are correct but reason is not the correct explanation of the assertion.

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