Q. Which of the following reactions occurs when iron is immersed in (oxygenated) sea water?

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Q. Which of the following is more stable form of iron in an oxygenated solution?

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Q. Which of the following are the types of chemical reactions?

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Q. More than one anodic and cathodic reactions are possible in corrosion.

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Q. Oxygenated acids are more corrosive than oxygen-free acids.

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Q. Which of the following parameter of electrolyte decreases the corrosion rate?

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Q. Which of the following are the types of polarization?

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Q. Concentration polarization is considered in both anodic and cathodic reactions.

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Q. Which of the following polarization will be influenced by electrolytic agitation?

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Q. What is meant by passivation?

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Q. What is the trans passive region?

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Q. Which of the following is denoted as // in an electrochemical cell notation?

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Q. Which of the following gives Standard cell potential of a cell (E⁰)?

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Q. Which of the following is a Nernst equation?

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Q. Zn/Zn⁺²(0.1M)//Ag⁺¹(1M)/Ag is the cell notation of zinc dissolution in silver. Then what is the Electrode potential of the cell formed? (T=298K, F=96500, R=8.314 J/Kg*K)

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Q. Passivity is achieved only if a sufficient quantity of oxidizer is added to the medium.

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Q. Which of the following metal-acid combination will shift metal from active to passive state with an increase in oxidizer concentration?

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Q. What is the nature of copper corrosion in oxygenated sulfuric acid?

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Q. The corrosion rate depends on both the medium and the metal involved.

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Q. What is the other name of concentration polarization?

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