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QJEEM21Chf3bc: JEE Main 2021 Chemistry - Class 11 JEEM21Chf3bc Solution: According to molecular orbital theory, the number of unpaired…

According to molecular orbital theory, the number of unpaired electron(s) in O22−O_2^{2 - } is :

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Molecular orbital configuration of O22−O_2^{2 - } is

σ1s2σ1s∗2σ2s2σ2s∗2(π2px2=π2py2)(π2px∗2=π2py∗2)\sigma _{1s}^2\sigma _{1s}^{*2}\sigma _{2s}^2\sigma _{2s}^{*2}\left( {\pi 2p_x^2 = \pi 2p_y^2} \right)\left( {\pi _{2px}^{*2} = \pi _{2py}^{*2}} \right)

Zero unpaired electron

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