Question

Assertion : the chemical formula of aluminum oxide AlO2 reason :aluminum combines with two oxygen atoms to form aluminum oxide

Answer 1

both the assertion and reasoning are true

Reasoning is the correct option of assertion.

Please check..first

This should be the answer in my point of view...

Answer 2

Both assertion and reason are false.

• The chemical formula for aluminum oxide is Al₂O₃, and not AlO₂.

• Aluminum reacts with three atoms of oxygen, and not two, to form aluminum oxide.

• An aluminum atom has three electrons in its valence shell. In order to gain stability, it needs to lose its three extra electrons.

• It, therefore, donates one electron each to three oxygen atoms and attains octet.

• On the other hand, an oxygen atom has six electrons in its valence shell. In order to attain octet, it needs to gain two more electrons.

• It, therefore, it accepts one electron each from two aluminum atoms and gains stability.

• Therefore, the formula for aluminum oxide is Al₂O₃.