Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 20 - Electrochemistry - Exercises - Page 905: 20.86


Cobalt has a lower $E^{\circ}_{red}$ value (-0.29V) as compared to that of Iron (-0.41V). Hence, it can not protect iron from corrosion, as the iron will be corroded first.

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