JEE Main2013Chemistryd and f Block ElementsActual
The element with which of the following outer electron configuration may exhibit the largest number of oxidation states in its compounds :
Options
- A3 d^5 4 s^2
- B3 d^8 4 s^2
- C3 d^7 4 s^2
- D3 d^6 4 s^2
Correct answer
A. 3 d^5 4 s^2
Step-by-step solution
The element with outer electron configuration 3 d^5 4 s^2 is Mn which exhibits oxidation states from +2 to +7 .