From the activity list included in this problem,which element below would serve as a sacrificial electrode for iron?
Activity Series =
A)Zn
B)Fe
C)Ni
D)all of these
E)none of these

Question

From the activity list included in this problem,which element below would serve as a sacrificial electrode for iron? 
Activity Series = 
A)Zn 
B)Fe 
C)Ni 
D)all of these 
E)none of these

Quizplus · Accepted Answer

According to the activity series, Zn has a higher reduction potential than iron, which means it is more likely to undergo reduction than iron. Therefore, Zn would serve as a sacrificial electrode for iron. Both Fe and Ni have lower reduction potential than Zn, so they would not be as effective as sacrificial electrodes for iron.

From the Activity List Included in This Problem,which Element Below