InterviewSolution
Saved Bookmarks
| 1. |
The standard reduction potential for `Zn^(2+)//Zn, Ni^(2+)//Ni` and `Fe^(2+)//Fe` are -0.76,-0.23 and `-0.44" V "` respectively. The reaction `X+Y^(2+) to X^(2)+Y` will have more negative `DeltaG` value when X and Y areA. X=Ni, Y=FeB. X=Ni , Y=ZnC. X=Fe , Y=ZnD. X=Zn , Y=Ni |
|
Answer» Correct Answer - D (d) `X+Y^(2+) to X^(2+)+Y` `DeltaG=-nFE_(cell)`. Greater the value of `E_(cell)`.more will be the value of `DeltaG`. For this, the difference between `E^(@)` values of `X^(2+)` and `Y^(2+)` must be maximum. This means that X=Zn and Y=Ni. |
|