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Select the incorrect statement about the wet corrosion from the following option.

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Select the incorrect statement about the wet corrosion from the following option.

(a) It involves the setting up of large number of galvanic cells

(b) It is explained by absorption mechanism

(c) It occurs only on heterogeneous metal surface

(d) It is a fast process

I have been asked this question in semester exam.

This question is from Wet Theory of Corrosion in chapter Corrosion, Electrolysis, Fuel Cells and Batteries of Engineering Chemistry II

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The correct option is (b) It is explained by absorption mechanism

For explanation I would say: Wet corrosion is explained by the mechanism of electrochemical reaction. All the other options are correct.

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