InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Of the ions `Zn^(2), Ni^(2 +)` and `Cr^(3 +)` [atomic number of `Zn = 30, Ni = 28, Cr = 24`]A. Only `Ni^(2+)` is coloured and `Zn^(2+)` and `Cr^(3+)` are colourlessB. All three are colourlessC. All three are colouredD. Only `Zn^(2+)` is colourless and `Ni^(2+)` and `Cr^(3+)` are coloured |
|
Answer» Correct Answer - D `Ni^(2 +)` and `Cr^(3 +)` are coloured. But `Zn^(2 +)` is colourless because of absence of unpaired `e^(-2)` |
|