Among the following oxides of 3d elements, th | vedclass

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(C) Mixed oxides are those which are formed by the combination of two simple oxides of the same metal in different oxidation states. Analyzing the giv

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$3$

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(C) Mixed oxides are those which are formed by the combination of two simple oxides of the same metal in different oxidation states. Analyzing the given oxides: $1. Mn_{3}O_{4} = MnO \cdot Mn_{2}O_{3}$ (Mixed oxide) $2. Fe_{3}O_{4} = FeO \cdot Fe_{2}O_{3}$ (Mixed oxide) $3. Co_{3}O_{4} = CoO \cdot Co_{2}O_{3}$ (Mixed oxide) The other oxides like $Ti_{2}O_{3}, V_{2}O_{4}, Cr_{2}O_{3},$ and $Fe_{2}O_{3}$ are simple oxides. Therefore, there are $3$ mixed oxides in the given list.

Among the following oxides of $3d$ elements, the number of mixed oxides are . . . . . .
$Ti_{2}O_{3}, V_{2}O_{4}, Cr_{2}O_{3}, Mn_{3}O_{4}, Fe_{3}O_{4}, Fe_{2}O_{3}, Co_{3}O_{4}$

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Among the following oxides of $3d$ elements, the number of mixed oxides are . . . . . . $Ti_{2}O_{3}, V_{2}O_{4}, Cr_{2}O_{3}, Mn_{3}O_{4}, Fe_{3}O_{4}, Fe_{2}O_{3}, Co_{3}O_{4}$