WAEC - Chemistry (2022 - No. 39)
An oxide has the following properties. It
I. is a white powder
II. reacts with HCI.
III. reacts with NaOH
IV. is insoluble in water
The oxide is
alkaline
amphoteric
acidic
neutral
Explication
An amphoteric oxide is an oxide that can act as either an acid or base in a reaction to produce a salt and water.