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^(-), N_(2)`
C. `CN^(-), N_(2)O_(2)^(2-), C_(2)^(2-)`
D. `N_(2), O_(2)^(-), NO^(+), CO`

Answer 1

Correct Answer - b
All the species have the same number of electrons, i.e., `14`.