Raaz1000
Amphoterism. In chemistry, an amphoteric compound is a molecule or ion that can react both as an acid as well as a base. Many metals (such as copper, zinc, tin, lead, aluminium, and beryllium) form amphoteric oxides or hydroxides. Amphoterism depends on the oxidation states of the oxide.
Answers & Comments
As you know that those oxide have acidic and basic both properties is called amphoteric oxide .
eg-Al2O3 and ZNO.
so ,we can say that it's PH is 7.......
hope it help you....
@rajukumar☺☺