Interpretation:
The sacrificial anodes need to be explained.
Concept introduction:
The rusting of iron takes place when oxidation of iron takes place which results in the formation of iron oxide when iron comes in contact with moisture in air.
![Check Mark](/static/check-mark.png)
Answer to Problem 4STP
Correct Answer: Option (d)
Explanation of Solution
Reason for correct option: If sacrificial anodes are attached to rust susceptible iron to prevent corrosion thus, the sacrificial anodes must oxidize more than iron.
In oxidation reaction, loss of electrons takes place thus; the sacrificial anodes must lose electrons more easily than iron.
Therefore, option (d) is correct.
Reason for incorrect option: If the sacrificial anodes are more likely to be reduced than iron thus, it will undergo reduction and the oxidation of iron takes place. Thus, sacrificial anode will not prevent corrosion of iron.
If sacrificial anodes have higher reduction potential, it will undergo reduction and again it cannot prevent corrosion of iron.
If sacrificial anodes are more porous than iron they cannot get easily oxidized as oxide layer cannot be formed easily on porous surface. Thus, it cannot prevent corrosion of iron.
Therefore, options (a), (b) and (c) are incorrect.
Chapter 22 Solutions
Chemistry: Matter and Change
Additional Science Textbook Solutions
Chemistry: The Central Science (14th Edition)
General, Organic, and Biological Chemistry (3rd Edition)
Essential Organic Chemistry (3rd Edition)
Chemistry: The Central Science (13th Edition)
CHEMISTRY-TEXT
Organic Chemistry (9th Edition)
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9780078021558/9780078021558_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305079373/9781305079373_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781118431221/9781118431221_smallCoverImage.gif)