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According to `MOT` whch of the following statement about magnetic character and bond order is corrent regarding `O_(2)^(o+)` .A. Paramagnetic and bond order `lt O_(2)`B. Paramagnetic and bond order `gt O_(2)`C. Dimagnetic and bond order `lt O_(2)`D. Dimagnetic and bond order `gt O_(2)` |
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Answer» Correct Answer - B `O_(2):sigma1s^(2),sigma^(.)s^(2),sigma2s^(2),sigma^(.)2s^(2),sigma2p_(x^(2)){{:(pi2py^(2)),(pi2pz^(2)):}{{:(pi^(+)2py^(1)),(pi^(+)2pz^(0)):}` Bond order `= (10-6)/(2) = 2.0` (Two unpaired electrons in antibounding molecular orbital) `O_(2)^(+):sigma1s^(2),sigma^(.)s^(2),sigma2s^(2),sigma^(.)2s^(2),sigma2p_(x^(2)){{:(pi2py^(2)),(pi2pz^(2)):}{{:(pi^(+)2py^(1)),(pi^(+)2pz^(0)):}` Bond order `= (10-5)/(2) = 2.5` (One unpaired electron in antibonding molecular orbital so it is paramagnetic) |
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