Which of the following transition elements (Cr,Co,Ni,and Cu)have positive oxidation potentials?
A)Cr
B)Cu
C)Cr,Cu,and Ni
D)Cr,Co,and Ni

Question

Quizplus · Accepted Answer

The standard electrode potential for a half-cell reaction determines the ability of an element to undergo reduction or oxidation. A positive oxidation potential indicates that the element has a tendency to lose electrons (undergo oxidation). Based on the standard electrode potentials listed in the literature, Cr, Co, and Ni have positive oxidation potentials while Cu has a negative oxidation potential. Therefore, only Cr, Co, and Ni are the transition elements with positive oxidation potentials, making choice D the correct answer.

Which of the Following Transition Elements (Cr,Co,Ni,and Cu)have Positive Oxidation