Which of the following methods are used to prevent rusting of iron?

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Galvanization

Crystallization

Sedimentation

answer is C.

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Detailed Solution

Galvanization is a method of rust prevention. This is done to prevent rusting of iron by protecting it from coming in contact with air and moisture. Zinc metal, being more reactive, reacts with air to form a hard layer of zinc oxide, which prevents air from passing through it.

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