(a)Write one reaction in which aluminium oxide behaves as a basic oxide and another in which it behaves as an acidic oxide.
(b)What special name is given to substances like aluminium oxide.
(c)Name another metal oxide which behaves like aluminium oxide.

(a) Aluminium oxide acts as a basic oxide when it reacts with acid.

$Al_2O_3 + 6HCl → 2AlCl_3 + 3H_2O$

Aluminium oxide acts as an acidic oxide when it reacts with a base.

$Al_2O_3 + 2NaOH → 2NaAlO_2 + H_2O$

(b) Amphoteric oxides act as both basic and acidic oxides.

(c) Zinc oxide is a metal oxide that behaves like aluminium oxide

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Updated on: 10-Oct-2022

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