In redox half-reactions,a more positive standard reduction potential means
(I)the oxidized form has a higher affinity for electrons.
(II)the oxidized form has a lower affinity for electrons.
(III)the reduced form has a higher affinity for electrons.
(IV)the greater the tendency for the oxidized form to accept electrons.
A)I only
B)II only
C)II,III
D)I,IV
E)II,IV

Question

Quizplus · Accepted Answer

A more positive standard reduction potential indicates a greater tendency for the oxidized form to accept electrons and undergo reduction. Thus, option (IV) is correct. Option (I) is incorrect because a higher electron affinity would correspond to a more negative reduction potential. Option (II) is also incorrect because a lower electron affinity would correspond to a more positive reduction potential. Option (III) is ambiguous and doesn't directly relate to the reduction potential of the half-reaction.

In Redox Half-Reactions,a More Positive Standard Reduction Potential Means