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  4. Iron pipes, lying in acidic soil, are often attached to the blocks of magnesium for their protection from rusting, because magnesium

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Q. Iron pipes, lying in acidic soil, are often attached to the blocks of magnesium for their protection from rusting, because magnesium

UPSEEUPSEE 2012Electrochemistry

Solution:

Magnesium is readily converted into positive ions when they come in contact of acidic soil. They form laycr of oxide over acidic soil and help in prevention of rusting of iron pipes.