Question

Pick the odd one out giving reasons [10 marks] e)MnO 2 , Pb 3 O 4 , Fe 3 O 4

Answer 1

Answer:

MnO₂

Explanation:

Explanation? Reason is simple. Pb₃O₄ [Lead(II,IV) oxide] and Fe₃O₄ [Iron(II,III) oxide] are both mixed oxides, constitued by similar atoms of the same element with different valencies, while MnO₂ (Manganese Oxide) is a normal oxide, where the valencies of all the atoms constituting the molecule are the same.

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Answer 2

The answer is
MnO 2

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