1.

Choose the incorrect statement about corrosion on the metal surface.

Answer»

In the corosion of iron, reduction of oxygen while oxidation of metal take place.
Rusting is REDUCED in highly ALKALINE medium.
`Mg` can ACT as sacrifical electrode.
`CO_(2)` gas can prevent the metal SURFACE from corrosion.

Solution :`CO_(2)` dissolves in water and provide `H^(+)` ions which make environment for corrosion.


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