Redox Reactions And Electrochemistry Ques 772
Question: Oxidation states of the metal in the minerals hematite and magnetite, respectively, are
Options:
A) II, III in hematite and II in magnetite
B) II, III in hematite and II in magnetite
C) II in hematite and II, II in magnetite
D) III in hematite and II, III in magnetite
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Hematite: $ \theta =180^{0}, $ Magnetite: $ \underset{\text{mixed oxide}}{\mathop{Fe_3O_4}},\to Fe_2O_3(+3)+FeO(+2) $
