JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure
Which of the following has unpaired electron \((s)\) ?
- A \(N_2\)
- B \(O_2^ - \)
- C \(N_2^{2 + }\)
- D \(O_2^{2 - }\)
Answer & Solution
Correct Answer
(B) \(O_2^ - \)
Step-by-step Solution
Detailed explanation
\(O_2^ - (17) = KK{(\sigma 2s)^2}({\sigma ^*}2{s^2}){(\sigma 2{p_x})^2}\) \({(\pi 2{p_y})^2}{(\pi 2{p_z})^2}{({\pi ^*}2{p_y})^2}{({\pi ^*}2{p_z})^1}\) one unpaired electron - Paramagnetic
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