Valence-bond theory is one of the two quantum mechanical approaches that explains bonding in molecules In some cases, valence bond theroy cannot cannot satisfactorily account for observed properties of molecules Consider the following molecular geometries `{:(NO,,CO,,O_(2)):}` Select correct statement`(s)` about these (More than one correct) .A. `NO` is paramagnetic `CO` and `O_(2)` are diamagneticB. `NO` and `O_(2)` are paramagnetic `CO` is diamagenticC. Bond order is in order `O_(2) lt NO lt CO`D. Number of unpaired electrons are `{:(NO,,1,,),(CO,,0,,),(O_(2),,0,,):}`

Valence-bond theory is one of the two quantum mechanical approaches th

1.	Valence-bond theory is one of the two quantum mechanical approaches that explains bonding in molecules In some cases, valence bond theroy cannot cannot satisfactorily account for observed properties of molecules Consider the following molecular geometries `{:(NO,,CO,,O_(2)):}` Select correct statement`(s)` about these (More than one correct) .A. `NO` is paramagnetic `CO` and `O_(2)` are diamagneticB. `NO` and `O_(2)` are paramagnetic `CO` is diamagenticC. Bond order is in order `O_(2) lt NO lt CO`D. Number of unpaired electrons are `{:(NO,,1,,),(CO,,0,,),(O_(2),,0,,):}`
Answer» Correct Answer - B::C Bond order of `NO,O_(2)` and `CO` and `CO` are 1,2 and 0 respectively Hence `NO` and `H_(2)` are paramagnetic `CO` is diamagentic Statement (b) is correct .

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