What are the SESQUI OXIDES ? give the examples.

The oxides having number of oxygen atoms per atom is found to be 3÷2 = 1.5 . It may be ionic, covalent, or mixed oxide.

Examples:

(1) Covalent: B₂O₃, N₂O₃ 

(2) Ionic: Al₂O₃, Fe₂O₃

(3) Mixed: Pb₂O₃ (PbO +PbO₂)

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What are the SESQUI OXIDES ? give the examples.

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