Layer of gets deposited over aluminium rod in anodising process.

aluminum oxide

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platinum oxide

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carbon monoxide

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aluminium hydroxide

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Solution

The correct option is A aluminum oxide
As electricity passes through the setup, the aluminum reacts with oxygen and forms an aluminum oxide layer which gets deposited over the aluminum rod and prevents the aluminum rod from corrosion.

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In anodising process, which metal is coated with its oxide to prevent corrosion?

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