Which of the following ores is a mixed oxide | vedclass

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(B) The chemical formula of Chromite ore is $FeCr_2O_4$ (or $FeO \cdot Cr_2O_3$).It is a mixed oxide of iron $(Fe^{2+})$ and chromium $(Cr^{3+})$.Haem

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Chromite ore

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(B) The chemical formula of Chromite ore is $FeCr_2O_4$ (or $FeO \cdot Cr_2O_3$).It is a mixed oxide of iron $(Fe^{2+})$ and chromium $(Cr^{3+})$.Haematite is $Fe_2O_3$ (an oxide of iron).Coleomanite is $Ca_2B_6O_{11} \cdot 5H_2O$ (a borate mineral).Tincal is $Na_2B_4O_7 \cdot 10H_2O$ (a borate mineral).Therefore,Chromite is the correct answer.

Which of the following ores is a mixed oxide of two different metals?

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