The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitals
$A$. have the same energy
$B$. have the minimum overlap
$C$. have same symmetry about the molecular axis
$D$. have different symmetry about the molecular axis
Choose the most appropriate from the options given below:
$A, B, C$ only
$A$ and $C$ only
$B, C, D$ only
$B$ and $D$ only
The correct order of the $O-O$ bond length in $O_2, H_2O_2$ and $O_3$ is
The bond order of $He_2^ + $ molecule ion is
During the change of $O _{2}$ to $O _{2}^{-}$, the incoming electron goes to the orbital :
Which of the following is diamagnetic
The paramagnetic molecule at ground state among the following is