Iron galvanized with zinc is cathodically protected from corrosion. This is because?

Chemistry

JAMB 1990

A. zinc has a more positive oxidation potential than iron
B. zinc has less positive oxidation potential than iron
C. bith have the same oxidation potential
D. zinc is harder than iron

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Correct Answer: Option A

Explanation

Iron galvanized with zinc is cathodically protected from corrosion because Zinc has a more positive oxidation potential than iron. This means that Zinc will preferentially corrode, acting as a sacrificial anode.

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Iron galvanized with zinc is cathodically protected from corrosion. This is because?

Correct Answer: Option A

Explanation

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