Answer the question on the basis of passage given below:
For the Transition Elements.
|
|
Sc |
Ti |
V |
Cr |
Mn |
Fe |
Co |
Ni |
Cu |
Zn |
|
Atomic Number: |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
Which transition metal has the greatest number of oxidation state?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Mn
The variety of oxidation states comes from the (n−1)d and ns electrons taking part in bonding, and it is largest in the middle of the series. Manganese (3d54s2) shows every oxidation state from +2 to +7, the widest range in the first series.
NCERT (2026-27 edition):
Oxidation States – “… The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example, exhibits all the oxidation states from +2 to +7.”
Oxidation States of the first row Transition Metal (Table 4.3)
| Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn |
|---|---|---|---|---|---|---|---|---|---|
| +3 | +2 +3 +4 | +2 +3 +4 +5 | +2 +3 +4 +5 +6 | +2 +3 +4 +5 +6 +7 | +2 +3 +4 +6 | +2 +3 +4 | +2 +3 +4 | +1 +2 | +2 |