The correct order of bond angles of the molecules $\mathrm{SiCl}_4, \mathrm{SO}_3, \mathrm{NH}_3, \mathrm{HgCl}_2$ is

$$ \text { Observe the following structure, } $$

$$ \text { The formal charges on the atoms 1,2,3 respectively are } $$

The bond angles $b_1, b_2$ and $b_3$ in the given structure are respectively (in ${ }^{\circ}$ )

In which of the following sets of molecules, the centil atoms of molecules have same hybridisation?