Assertion: Aluminium forms a protective oxide layer on its surface, which makes it resistant to corrosion.
Reason: The oxide layer on aluminum is stable and insoluble, preventing further oxidation of the metal.
Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
Assertion is true, but Reason is false.
Assertion is false, but Reason is true
The oxide layer on aluminium is indeed stable and insoluble, which prevents further oxidation of the metal and makes it resistant to corrosion. Therefore, the Reason is a correct explanation for the Assertion.