Question:
The first transition series metal that exhibits only +2, +3, +4 and +6 oxidation states is
The first transition series metal that exhibits only +2, +3, +4 and +6 oxidation states is
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Manganese (Mn) shows the maximum number of oxidation states (+2 to +7).
Scandium (Sc) shows only +3.
Zinc (Zn) shows only +2.
Scandium (Sc) shows only +3.
Zinc (Zn) shows only +2.
Updated On: Apr 29, 2026
- Cr
- Mn
- Fe
- Co
- Ni
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Transition metals exhibit variable oxidation states due to the participation of both \((n-1)d\) and \(ns\) electrons in bonding.
Step 3: Detailed Explanation:
Let's check the common oxidation states:
- Cr: +2, +3, +4, +5, +6.
- Mn: +2, +3, +4, +5, +6, +7.
- Fe: +2, +3, +4, +6. (While +2 and +3 are most common, +4 and +6 are observed in specific species like ferrates).
- Co: +2, +3, +4.
- Ni: +2, +3, +4.
The pattern specified in the question (+2, +3, +4, +6) is characteristic of Iron (Fe).
Step 4: Final Answer:
The metal is Fe.
Transition metals exhibit variable oxidation states due to the participation of both \((n-1)d\) and \(ns\) electrons in bonding.
Step 3: Detailed Explanation:
Let's check the common oxidation states:
- Cr: +2, +3, +4, +5, +6.
- Mn: +2, +3, +4, +5, +6, +7.
- Fe: +2, +3, +4, +6. (While +2 and +3 are most common, +4 and +6 are observed in specific species like ferrates).
- Co: +2, +3, +4.
- Ni: +2, +3, +4.
The pattern specified in the question (+2, +3, +4, +6) is characteristic of Iron (Fe).
Step 4: Final Answer:
The metal is Fe.
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