Corrosion requires Reduction reaction Oxidation reaction Decomposition reaction
ID: 1059433 • Letter: C
Question
Corrosion requires Reduction reaction Oxidation reaction Decomposition reaction Both A and B None of the above The loss of electron(s) is the Reduction reaction Oxidation reaction Decomposition reaction Synthesis reaction Replacement reaction Reduction occurs at sites called Anodes Cathodes Given the table at the end of the test, which metal is the most anodic (active) of the grouping below? Au^3+ + 3e^- rightarrow Au Fe^3+ + e^- rightarrow Fe^2+ Cd^2+ 2e^- rightarrow Cd Fe^2+ + 2e^- rightarrow Fe Preferential aqueous corrosion attack that occurs at breaks in the natural oxide layer on passive metals is referred to as Crevice corrosion Intergranular corrosion Pitting corrosion Galvanic corrosion Stress corrosion cracking If you are using a sacrificial metal for galvanic corrosion protection, you should use a(n) area anode next to a(n) area cathode small (area anode;//large (area cathode) large (area anode;//small (area cathode) equal (area anode;//equal (area cathode)Explanation / Answer
14) D. Both A and B
15) B. Oxidation reactions.
16) B. Cathodes
17) C. standard reduction potential high negative value means most electropositive that is anodic.
18) A. Crevice corrosion
19) A
18)