What is the bond order of the $Be_{2}$ molecule?

For $F_2$ and $OF$ molecules,consider the following statements:
$(a)$ Bond order for both is one
$(b)$ $OF$ is paramagnetic but $F_2$ is diamagnetic
$(c)$ $F_2$ is more likely to dissociate into atoms than $OF$
$(d)$ Both have greater number of electrons in $BMO$ than that in $ABMO$
Which of the following statements are true $(T)$ or false $(F)$ respectively?

The ground state magnetic property of $B_{2}$ and $C_{2}$ molecules will be

Which of the following $M.O.$ has two nodal planes?

The correct statement with regard to $H_{2}^{+}$ and $H_{2}^{-}$ is

Which of the following is not paramagnetic?