Aluminium is more reactive than iron but aluminium is less easily corroded than iron because:

aluminium is a noble metal

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oxygen forms a protective oxide layer

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iron undergoes reaction easily with water

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iron forms mono and divalent ions

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Solution

The correct option is B oxygen forms a protective oxide layer
Due to formation of a protective layer of aluminium oxide by oxygen on aluminium surface, it is less easily corroded than iron.

Option B is correct.

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Q. Aluminium is much more reactive than iron because its standard reduction potential is higher than iron. Still, aluminium is less easily corroded than iron because :

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is more reactive than iron but it is less easily corroded than iron because :

Q. Aluminium items do not corrode easily when compared to objects made of iron because –

Aluminium is said to be more reactive than iron, towards oxygen (or air).Yet iron undergoes corrosion to a greater extent than aluminium.Explain.

Aluminium is obtained by the electrolysis of molten aluminium oxide. A metal just below aluminium in the reactivity series can be extracted by which method easily:

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Aluminium is more reactive than iron but aluminium is less easily corroded than iron because:

The correct option is B oxygen forms a protective oxide layerDue to formation of a protective layer of aluminium oxide by oxygen on aluminium surface, it is less easily corroded than iron.Option B is correct.

The correct option is B oxygen forms a protective oxide layer
Due to formation of a protective layer of aluminium oxide by oxygen on aluminium surface, it is less easily corroded than iron.

Option B is correct.