NEET2021Chemistry-Isoelectronic Species
NEET 2021 Chemistry Isoelectronic Species MCQ Question
Type: MCQ-conceptual-Easy-Class 12
From the following pairs of ions which one is not an iso-electronic pair?
A
O²⁻, F⁻
B
Na⁺, Mg²⁺
C
Mn²⁺, Fe³⁺
D
Fe²⁺, Mn²⁺
Correct Answer
Option D
Detailed Explanation
Iso-electronic species have the same number of electrons. Fe²⁺ and Mn²⁺ have different electron counts.
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