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Iron pipes lying under acidic soil are o...

Iron pipes lying under acidic soil are often attached to blockes of magnesium for protection from rusting. Magnesium offers protection to iron against corrostion because it

A

Prevent air from reaching the surface of iron

B

is more readily converted into positive ions

C

Is higher than iron

D

Forms a corrosion `-` resistance alloy with iron

Text Solution

Verified by Experts

The correct Answer is:
B
Due to eletropositive and reactive in nature, magnesium is readily converted into positive ions on contact with iron pipes and , hence, iron pipes remains as it is.
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