Question
Chemistry Question on Electrochemistry
The standard reduction potential for Zn2+/Zn, Ni2+/Ni and Fe2+/Fe are -76, -0.23 and -0.44 V, respectively.
The reaction X + Y2+ → X2+ + Y will be spontaneous when
A
X = Ni, Y = Fe
B
X = Ni, Y = Zn
C
X = Fe, Y = Zn
D
X = Zn, Y = Ni
Answer
X = Zn, Y = Ni
Explanation
Solution
The correct option is (D): X = Zn, Y = Ni.