Question

Which elements form acidic oxide?

Answer 1

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Manganese heptoxide, which reacts with waterforming permanganic acid.

Aluminium oxide. Aluminium oxide (Al2O3) is an amphoteric oxide; it can act as a base or acid. ...

Silicon dioxide. Silicon dioxide is a weakly acidic oxide. ...

Phosphorus oxides. ...

Sulphur oxides. ...

Chlorine oxides.