November 2011 - Chemistry Subject Test

warsovereign
Sun, 06 Nov 2011 05:14:59 +0000

Aluminium oxide and hydroxide are amphoteric.
Al3O2 + H+ → Al3+ + H2O
Al3O2 + OH- → [Al(OH4)]-

Hydroxide is a way similar.
It was just asked the day before the subject test in my school exam.