Number of lone pair (s) of electrons on central atom and the shape of $BrF _{3}$ molecule respectively, are ..... .
$0 ,$ triangular planar
$1,$ pyramidal.
$2,$ bent $T-$shape.
$1,$ bent $T-$shape
Total number of electron present in $\left(\pi^*\right)$ molecular orbitals of $\mathrm{O}_2, \mathrm{O}_2^{+}$and $\mathrm{O}_2^{-}$is ............
Explain energy level diagram for molecular orbital form by $1\mathrm{s}$ orbitals.
The bond order of $He_2^ + $ molecule ion is
Select the $CORRECT$ statement if internuclear axis is $y-$ axis
The bond order and magnetic property of acetylide ion are same as that of $........$.