Identify the correct combination of the following statements.
P. Hydrogen electrode is a standard used to measure redox potentials.
Q. Activation polarization refers to electrochemical process controlled by reaction sequence at metal-solution interface.
R. Potential-pH diagrams can be used to predict corrosion rates of metals.
S. Cathodic protection can use sacrificial anodes such as magnesium.
A. P, Q and R
B. Q, R and S
C. P, Q and S
D. P, R and S
Answer: Option C
This Question Belongs to Metallurgical Engineering >> Electrometallurgy And Corrosion
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