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क्रोमाइट अयस्क में आयरन तथा क्रोमियम की ऑक्सीकरण अवस्था क्रमशः है :

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क्रोमाइट अयस्क में आयरन तथा क्रोमियम की ऑक्सीकरण अवस्था क्रमशः है :
A. `+3,+2`
B. `+3,+6`
C. `+2,+6`
D. `+2,+3`
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Correct Answer - D
क्रोमाइट अयस्क `FeO*Cr_(2)O_(3)`

Fe की आ सं `=+2`
Cr की आ सं `=+3`
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