Chemistry · Electrochemistry and Corrosion
Which of the following statements correctly describes a factor affecting the rate of corrosion?
- 1A decrease in hydrogen overpotential increases the rate of corrosion✓
- 2The smaller the grain size of the metal, the lesser the solubility and hence lesser the corrosion
- 3Corrosion is more rapid and highly localized if the anodic area is large and the cathodic area is small
- 4Metals higher in the electrochemical series are less prone to corrosion
Correct answer
A decrease in hydrogen overpotential increases the rate of corrosion
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