A) \[X=Ni,\,Y=Fe\]
B) \[X=Ni,\,Y=Zn\]
C) \[X=Fe,\,Y=Zn\]
D) \[X=Zn,\,Y=Ni\]
Correct Answer: D
Solution :
\[X+{{Y}^{2+}}\xrightarrow{{}}{{X}^{2+}}+Y\]For reaction to be spontaneous \[{{E}^{o}}\] must be positive. \[{{E}^{o}}_{Zn/Z{{n}^{+2}}}+{{E}^{o}}_{N{{i}^{2+}}/Ni}=0.76+(-0.23)=+0.53\](positive)You need to login to perform this action.
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