1.

Of the following sets ,which one does not contain isoeletronic species ?A. `PO_4^3 , SO_4^(2), ClO_4`B. `CN^(-),N_2,C_2^(2-)`C. `SO_3^(2), CO_3^(2), NO_3`D. `BO_3^3 , CO_3^2 , NO_3`

Answer» Correct Answer - C
`SO_3^(2-)` (42 electrons) , `CO_3^(2-)` (32 electrons ) and `NO_3^(3-)` (32 electrons) are not isoelectric.


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