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The passive state of a metal is often relatively unstable and subject to damage.

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in Corrosion Engineering by (98.5k points)
The passive state of a metal is often relatively unstable and subject to damage.

(a) True

(b) False

The question was asked in an online interview.

My query is from Modern Theory Principles topic in section Modern Theory Principles of Corrosion Engineering

1 Answer

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Correct choice is (a) True

To explain I would say: Passivation is the loss of chemical reactivity of a metal due to the formation of the oxide layer. It is relatively unstable and subject to damage. Chemical properties, wear resistance and thickness are the factors for the stability of the passive layer.

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