Published by:
CGP EDU Academic Team
Published on: August 23, 2026
Pair of transition metal ions having the same number of unpaired electrons is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Ion | Configuration | No. of unpaired e⁻ |
(1) V³⁺ | [Ar] 3d³ 4s⁰ | 3 |
Co²⁺ | [Ar] 3d⁷ 4s⁰ | 3 |
(2) Ti²⁺ | [Ar] 3d² 4s⁰ | 2 |
Co²⁺ | [Ar] 3d⁷ 4s⁰ | 3 |
(3) Fe³⁺ | [Ar] 3d⁵ 4s⁰ | 5 |
Cr²⁺ | [Ar] 3d⁴ 4s⁰ | 4 |
(4) Ti³⁺ | [Ar] 3d¹ 4s⁰ | 1 |
Mn²⁺ | [Ar] 3d⁵ 4s⁰ | 5 |
So V 2+ & Co 2+ same number of unpaired electron.
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