MCQ
Which of the following has unpaired electron $(s)$ ?
- A$N_2$
- ✓$O_2^ - $
- C$N_2^{2 + }$
- D$O_2^{2 - }$
✓
Answer
Correct option: B.
$O_2^ - $
b
$O_2^ - (17) = KK{(\sigma 2s)^2}({\sigma ^*}2{s^2}){(\sigma 2{p_x})^2}$
$O_2^ - (17) = KK{(\sigma 2s)^2}({\sigma ^*}2{s^2}){(\sigma 2{p_x})^2}$
${(\pi 2{p_y})^2}{(\pi 2{p_z})^2}{({\pi ^*}2{p_y})^2}{({\pi ^*}2{p_z})^1}$
one unpaired electron - Paramagnetic
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