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Question

Corrosion can be prevented by :


A
painting the metal surface
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B
alloying the metal with more anodic metal
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C
to prevent the contact of the metal surface with good electrical conducting media
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D
all
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Solution

The correct option is D all
Corrosion can be prevented by methods such as coating the metal surface by paint, alloy formation and preventing the contact of metal surface with good electrical conductors.
Hence, correct option is D

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