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Q.

Corrosion can be prevented by ___________. 

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a

Keeping iron exposed to air

b

keeping iron at height

c

Keeping iron in water

d

Greasing the metal

answer is B.

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Detailed Solution

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Corrosion can be prevented by greasing, painting the surface, galvanizing, and by zinc plating.

All of these processes prevent the surface of iron to come in contact with oxygen.

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