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Questions and Answers
What is the overall reaction for the absorption of oxygen in neutral or alkaline medium?
What is the overall reaction for the absorption of oxygen in neutral or alkaline medium?
- Fe(OH)3 + O2 Fe2O3
- Fe(OH)2 + O2 Fe(OH)3
- Fe2+ + 2OH- Fe(OH)2 (correct)
- Fe2+ + O2 Fe2O3
What is the reaction for the liberation of hydrogen in acidic medium?
What is the reaction for the liberation of hydrogen in acidic medium?
- H+ + e- H
- H2O + 2e- 2OH- + H2
- 2H2O + 2e- H2 + 2OH-
- 2H+ + 2e- H2 (correct)
What is the purpose of the electrochemical series?
What is the purpose of the electrochemical series?
- To list metals and alloys in increasing order of their resistance to corrosion
- To arrange elements based on their standard reduction electrode potential (correct)
- To determine resistance to corrosion in sea water
- To consider the passivity of metals
What does the galvanic series take into account that the electrochemical series does not?
What does the galvanic series take into account that the electrochemical series does not?
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What happens to ferrous hydroxide in the presence of moisture and atmospheric oxygen?
What happens to ferrous hydroxide in the presence of moisture and atmospheric oxygen?
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What is the purpose of the galvanic series?
What is the purpose of the galvanic series?
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What is the overall reaction for the liberation of hydrogen in neutral or alkaline medium?
What is the overall reaction for the liberation of hydrogen in neutral or alkaline medium?
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What does the electrochemical series arrange in increasing order?
What does the electrochemical series arrange in increasing order?
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What happens to ferrous hydroxide in the presence of moisture and atmospheric oxygen?
What happens to ferrous hydroxide in the presence of moisture and atmospheric oxygen?
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What is the reaction for the liberation of hydrogen in acidic medium?
What is the reaction for the liberation of hydrogen in acidic medium?
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