Multiple choice

If valence electrons of Al and O are 3 and 6 respectively, which of the following compounds will be formed by reaction of aluminium and oxygen?

  1. AlO2

  2. Al2O3

  3. Al3O6

  4. Al6O3

  5. Al2O

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Valency of Al is 3 and that of O is 2. The formula of compound formed is given by reversing the valencies of elements.