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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

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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.

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