MCQ
Of the following sets which one does NOT contain isoelectronic species
- A$PO_4^{3 - },\,SO_4^{2 - },\,ClO_4^ - $
- B$C{N^ - },\,{N_2},\,C_2^{2 - }$
- ✓$SO_3^{2 - },\,CO_3^{2 - },\,NO_3^ - $
- D$BO_3^{3 - },\,CO_3^{2 - },\,NO_3^ - $
✓
Answer
Correct option: C.
$SO_3^{2 - },\,CO_3^{2 - },\,NO_3^ - $
(c) $SO_4^{2 - }$ has $42$ electrons; $CO_3^{2 - }$ has $32$ electrons; $NO_3^ - $ has $32$ electrons.
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