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Which one of the following compounds does not exhibit a different oxidation number of the same element?

Options

  1. APb ₃ O ₄
  2. BFe ₃ O ₄
  3. CFe ₂ O ₃
  4. DMn ₃ O ₄

Correct answer

A. Pb ₃ O ₄

Step-by-step solution

Except in Pb3O4 all three compounds have variable oxidation numbers (+2 /+3) of the main element.

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