QNEET-2019-Ch-778: NEET 2019 Chemistry - Class 11 NEET-2019-Ch-778 Solution: Which of the following diatomic molecular species has only \(…

C 2 has 12 electrons. Moleculer orbital configuration of C 2 = _ 1 s 2 _ 1 s 2 _ _ 2 s 2 _ 2 s 2 _ � 2 p x 2 = � 2 p y 2 Here no unpaired electron present, so it is diamagnetic. Here, Bond order = 8 _ 4 2 = 2. So here two bonds are present. For this two bond formation 4 electrons are required which is present in � 2 p x 2 and � 2 p y 2 So, in C 2 molecule, only � electron occupied the bonding molecular orbital.