The $H_3O^{+}$ ion has the following shape:

What is the number of lone pairs of electrons on $Xe$ in $XeF_2$?

Identify the incorrect statement for $PCl_5$ from the following.

The number of species from the following that have pyramidal geometry around the central atom is . . . . . . . . .
$S_2O_3^{2-}, SO_4^{2-}, SO_3^{2-}, S_2O_7^{2-}$

The shape of the methane molecule is:

The maximum number of lone pairs of electrons on the central atom from the following species is $........$. $ClO_3^-$,$XeF_4$,$SF_4$ and $I_3^-$