I. Rusting of iron is an example of corrosion but tarnishing of sodium metal is not.II. Covering the surface with bis - phenol protect iron from rusting.III. Sn and Zn are used to protect iron from rusting. True statements are

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An Intiative by Sri Chaitanya

I and II

I and III

II and III

I, II and III

answer is C.

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Detailed Solution

Tarnishing of Na is example of corrosion

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