Which of the following molecules is tetrahedral?

Consider the following reactions:
$(i)$ $PCl_3 + 3H_2O \to H_3PO_3 + 3HCl$
$(ii)$ $SF_4 + 3H_2O \to H_2SO_3 + 4HF$
$(iii)$ $BCl_3 + 3H_2O \to H_3BO_3 + 3HCl$
$(iv)$ $XeF_6 + 3H_2O \to XeO_3 + 6HF$
Then according to given information the incorrect statement is

How many of the following species have $sp^3$ hybridisation of the central atom?
$SO_3$ (Solid),$H_3PO_2$,$S_2O_3^{2-}$,$XeO_2F_2$,$I_3^-$,$N_2O$,$NH_2^-$

Which of the following molecular geometries is not produced by $sp^3$ hybridisation?

In graphite,the $C$-atom is in which state of hybridisation?

Total number of nodal planes present in the $d-$orbital which is used in the hybridisation of $XeF_2$.