Iron sheets are covered with a layer of zinc i.e., galvanized mainly to:

harden the surface

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increase the surface

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prevent action of water only

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prevent action of oxygen and water

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Solution

The correct option is D prevent action of oxygen and water
Iron sheets are covered with a layer of Zinc i.e. galvanized mainly to prevent action of oxygen and water.

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Similar questions

Iron sheets are cleaned with hydrochloric acid before dipping into molten zinc for galvanizing. Why?

Give reasons for the following:

a) Iron is used to construct bridges and houses.

b) Iron sheets are galvanized before use.

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