Question

Even though aluminum is active, it is highly resistant to air. Explain the reason for this​

Answer 1

Answer:

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Though chemically active, aluminum is nevertheless highly corrosion-resistant, because in air a hard, tough oxide film forms on its surface. Aluminum is an excellent conductor of heat and electricity. Its thermal conductivity is about one-half that of copper; its electrical conductivity, about two-thirds.

Answer 2

Answer: Here's your answer!!!

Explanation:

Aluminium has a protective basic layer of oxide film on its surface which prevents its reaction with air. For the reaction to be carried out we need to remove oxide film by rubbing with sand paper.