Corrosion of zinc can be minimized by increasing the pH to ___________

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Corrosion of zinc can be minimized by increasing the pH to ___________

A. 9

B. 10

C. 11

D. 12

The question was posed to me in an internship interview.

I would like to ask this question from Factors Influencing Corrosion in division Corrosion, Electrolysis, Fuel Cells and Batteries of Engineering Chemistry II

Correct choice is C. 11

For explanation: Corrosion of zinc can be minimized by increasing the pH to 11. pH 11 means it will be basic in nature and hence will be less prone to corrosion.