Question

Which one of the following constitutes a group of the isoelectronic species?
(a) $C_2^{2-}$, $O_2^-$, CO, NO
(b) NO⁺, $C_2^{2-}$, CN⁻, N₂
(c) CN⁻, N₂, $O_2^{2-}$, $C_2^{2-}$
(d) N₂, $O_2^-$, NO⁺, CO

Answer 1

${\huge {\mathfrak {Answer :-}}}$

➡️ Option (B)

That's it..