What is the difference between the bond angles in the cationic species of $PCl_5$ and $PBr_5$ in the solid state?

The incorrect statement is :-

The formal charges of $N_{(1)}$,$N_{(2)}$,and $O$ atoms in the structure $N_{(1)} = N_{(2)} = O$ are respectively:

The number of ionic,covalent,and coordinate bonds in $NH_4Cl$ are respectively:

The number of molecules or ions from the following,which do not have an odd number of electrons are $...............$.
$A. NO_2$ $B. ICl_4^{-}$ $C. BrF_3$ $D. ClO_2$ $E. NO_2^{+}$ $F. NO$

The number of $S-S$ bonds in sulphur trioxide trimer $S_3O_9$ is