Which one of the following constitutes a group of the isoelectronic sp

1.	Which one of the following constitutes a group of the isoelectronic species?
Answer» `CN^(-1), N_(2), O_(2)^(-2), O_(2)^(-2)` `N_(2) , O_(2)^(-1), NO^(+), CO` `NO^(+) , C_(2)^(-2), CN^(-1), N_(2)` `NO^(+), C_(2)^(-2), CN^(-1), N_(2)` ANSWER :d

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