A) \[NO,\,C{{N}^{-}},\,{{N}_{2}},\,O_{2}^{-}\]
B) \[N{{O}^{+}},\,C_{2}^{2-},\,O_{2}^{-},\,CO\]
C) \[{{N}_{2}},\,C_{2}^{2-},\,CO,\,NO\]
D) \[CO,\,N{{O}^{+}},\,C{{N}^{-}},\,C_{2}^{2-}\]
Correct Answer: D
Solution :
Species having equal number of electrons are known as isoelectronic species. In CO number of In \[N{{O}^{+}}\] number of electrons electrons = 6 + 8 = 14 =7 + 8 - 1 = 14 In CN- number of In \[C_{2}^{2-}\] number of electrons electrons = 6 + 7 + 1 = 14 =12 + 2 = 14 Hence, all have 14 electrons so, they are isoelectronic species.
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