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Preferential cathode and anode are formed based on the potential value of a metal electrode.

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Preferential cathode and anode are formed based on the potential value of a metal electrode.

(a) True

(b) False

This question was addressed to me in semester exam.

This question is from Principles topic in chapter Corrosion Principles of Corrosion Engineering

1 Answer

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Right option is (a) True

Best explanation: Electrode with relatively high reduction potential preferentially act as a cathode and the other electrode will act as an anode. The effect of galvanic coupling can be minimized by selecting metal combinations with less potential difference.

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