MCQ
Among $K{O_2},\,AlO_2^ - ,\,Ba{O_2}$ and $NO_2^ + $ unpaired electron is present in
- A$NO_2^ + $ and $Ba{O_2}$
- B$K{O_2}$ and $AlO_2^ - $
- ✓$K{O_2}$ only
- D$Ba{O_2}$ only
while others have paired electron
$NO_2^ + $$= 22$ electrons ; $Ba{O_2}$= $72 $
electrons$Al{O_2} = 30$ electrons ; $K{O_2} = 35$ electrons
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.