NEET 2005
- Exam
- NEET
- Year
- 2005
- Subject
- Chemistry
- Chapter
- d and f Block Elements
NEET 2005 · Chemistry · d and f Block Elements
The aqueous solution containing which one of the following ions...
The aqueous solution containing which one of the following ions will be colourless?
(Atomic number : )
Options
- A
- B
- C
- D
Correct answer
A.
Step-by-step solution
(
)
| Ion | Electronic Configuration in box | |||||
| Sc^{3+} | 18 | {[Ar] 3 d^0 4 s^0} | [Ar] $\begin{array}{|l|}</td></tr><tr><td>\end{array}$\begin{array}{|l|}</td></tr><tr><td>\end{array}$ | 4 | Paramagnetic | 4.9 |