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Corrosion Theories Quiz

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Questions and Answers

What is the primary nature of the corrosion process?

Condensation process

Reduction process

Oxidation process (correct)

Sublimation process

Which theory of corrosion primarily deals with reactions in the absence of moisture?

Acid theory

Galvanic theory

Dry or chemical corrosion theory (correct)

Electrochemical theory

What is the main consequence of corrosion on metals?

Formation of alloys

Improvement in conductivity

Increase in weight

Loss of metal integrity (correct)

Which of the following is NOT considered a theory of corrosion?

Biochemical theory Signup and view all the answers

In the context of corrosion theories, what type of reactions does galvanic corrosion involve?

Reactions between different metals in an electrolyte Signup and view all the answers

Which acids are primarily involved in the Acid Theory of corrosion?

Acids produced by atmospheric carbon dioxide and moisture Signup and view all the answers

Which gas does NOT play a role in the Chemical Theory (Dry Corrosion) of metal corrosion?

Carbon dioxide Signup and view all the answers

What determines the extent of corrosion according to the Chemical Theory?

Chemical affinity of the metal for reactive gases Signup and view all the answers

What is a common product of corrosion according to the Acid Theory?

Fe(OH)3 Signup and view all the answers

Which of the following is an assumption of the Electrochemical Theory of corrosion?

Electrochemical reactions play a crucial role in the rusting of metals. Signup and view all the answers