Identify the set containing isoelectronic species
- A
$\mathrm{N}_2, \mathrm{O}_2^{2-}, \mathrm{NO}^{+}$
- B
$\mathrm{N}_2, \mathrm{CO}, \mathrm{NO}^{+}$
- C
$\mathrm{F}_2, \mathrm{O}_2^{2-}, \mathrm{N}_2$
- D
$\mathrm{N}_2, \mathrm{O}_2^{2+}, \mathrm{C}_2$
✓ Correct answer: B
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