AP EAMCET Medical 24 Sep 2020 Shift 1 Paper

Which of the following statement is incorrect from the view point of molecular orbital theory?
a) Be2 is not a stable molecule
b)He2 is not stable but He2+ is expected to exits
c) Bond strenght of N2 is maximum amogst the homonuclear diatomic molecules belonging to the second period
d)The order of energies of molecular orbitals in N2 molecule is
σ2s<σ°2s<σ2pz<(π2px=π2py)<(π′2px=π′2py)<σ°2pz