Number of molecules having bond order 2 from the following molecule is _______. C2, O2, Be2, Li2, Ne — JEE Mains Chemistry Past Papers Chemistry Question

💡 Solution & Explanation

C2 (12e–) : 1s2,*1s2,2s2,*2s2 2 x y 2p 2p       B.O. = 8 2   O2 (16e–) : 1s2,*1s2,2s2,*2s2,2pz2 2 x y 2p 2p       1 x y *2p *2p       B.O. = 10 2   Be2 (8e–) : 1s2,*1s2,2s2,*2s2 B.O. = 4 0   Li2 (6e–) : 1s2,*1s2,2s2 B.O. = 4 1   Ne2 (20e–) : 1s2,*1s2,2s2,*2s2,2pz2 2 x y 2p 2p       2 x y z *2p *2p *2p        B.O. = 10 0   N2 (14e–) : 1s2,*1s2,2s2,*2s2 2 x y 2p 2p       z 2p  B.O. = 10 6   He2 (4e–) : 1s2,*1s2 B.O. = 2 0  