Question

A compound consists of aluminium and oxygen. What is its formula ?​

Answer 1

Answer:

Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al2O3. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide

Answer 2

Answer:

Its formula will will be Al2O3.It is called as aluminium oxide

Process -

Al O

Valency - 3 2

Now cross multiply Al with valency of O and O with valency of Al

This will result in formation of chemical formula

Al2O3