Question

Write the general formulae of the oxides formed by first row transition elements.

Answer 1

1. The first row transition elements form oxides with general formulae: MO, M₂O₃, M₃O₄, MO₂, M₂O₅, and MO₃.
2. These oxides vary based on the oxidation state of the metal.
3. Lower oxidation state oxides are generally basic.
4. Higher oxidation state oxides tend to be acidic.
5. Oxides formed in intermediate oxidation states are usually amphoteric.
6. For example, manganese forms MnO (basic), Mn₂O₃ (amphoteric), and Mn₂O₇ (acidic) oxides.