Set of isoelectronic species is

Options

(a) N₂,CO₂,CN⁻,O
(b) N, H₂S, CO
(c) N₂,CO,CN⁻,O₂⁺²
(d) Cl,Mg,Ca

Correct Answer:

N₂,CO,CN⁻,O₂⁺²

Explanation:

Isoelectronic means equal electric, which means the atom or group have the same number of electrons that is Elements coming before and after noble gas form Isoelectronic ion after losing (or) gaining the electrons until the number of Electrons will be equal.