Question

In the reactivity series of metals aluminums shows higher reactivity than iron as per its position still rusting is a big issue in case of iron but not in case of aluminium because:

A. After corrosion the formed oxide of aluminium is porous which exposes the fresh lower layer of the metal for further corrosion
B. After corrosion the formed oxide of aluminium is non porous which protects the fresh lower layer of the metal from further corrosion
C. After corrosion the formed oxide of iron is non-porous which exposes the fresh lower layer of the metal for further corrosion
D. both 2 and 3​

Answer 1

Answer:

Option d both 2 and 3

Explanation:

Bacause in case of aluminium After corrosion the formed oxide of aluminium is non porous which protects the fresh lower layer of the metal from further corrosion

In case of iron After corrosion the formed oxide of iron is non-porous which exposes the fresh lower layer of the metal for further corrosion....

Answer 2

Answer:

option d is the right answer of your question