Answer:
a. alumina
b. corundum
h. bauxite
Explanation:
The following compounds have the maximum amount of Aluminum oxide -
Alumina -
Alumina is known as the aluminium oxide , with a formula of [tex]Al_2O_3[/tex] ,
It is the most commonly occuring oxide of Aluminum metal .
Corundum -
It is the crystalline form , with the molecular formula of [tex]Al_2O[/tex] ,
It also have some trace of other metals like , chromium , vanadium , titanium.
bauxite -
It is the sedimentary rock , which has very high quantity of Aluminium metal .