Among the following group which represents the collection of isoelectronic species ?
Among the following group which represents the collection of isoelectronic species ?
A. `NO, CN^(-), N_2, O_2^-`
B. `NO^+, C_2^(2-), O_2^(-) , CO`
C. `N_2, C_2^(2-) , CO, NO`
D. `CO, NO^(+), CN^(-), C_2^(2-)`
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Correct Answer - D
Species having equal number of electrons ae known as isoelectronic species.
Number of electrons ,
In CO =6+8=14
In `NO^+`=7+8-1=14
In `CN^-`=6+7+1=14
In `C_2^(2-)` =12+2=14
Hence, all have 14 electrons, so they are isoelectronic species.
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