In the ozone $(O_3)$ molecule,the formal charge on the central oxygen atom is:

What is the number of bond pair of electrons and lone pair of electrons present in the valence shell of chalcogens in their hydrides $(H_2X)$?

Match List-$I$ with List-$II$:

List-$I$ (Molecule)	List-$II$ (Shape)
$A$. $NH_3$	$I$. Square pyramid
$B$. $BrF_5$	$II$. Tetrahedral
$C$. $PCl_5$	$III$. Trigonal pyramidal
$D$. $CH_4$	$IV$. Trigonal bipyramidal

Choose the correct answer from the options below:

Which one of the following sets is correct for the interhalogen compound $BrF_5$?

Statement $I$ : $SO_2$ and $H_2O$ both possess $V$-shaped structure.
Statement $II$ : The bond angle of $SO_2$ is less than that of $H_2O$.
In the light of the above statements,choose the most appropriate answer from the options given below:

Trigonal bipyramidal geometry is shown by