In the following, the oxoacid with a peroxy bond is

Justify the placement of $O$,$S$,$Se$,$Te$,and $Po$ in the same group of the periodic table in terms of electronic configuration,oxidation state,and hydride formation.

Write the molecular formula of Marshall's acid.

The number of $S=O$ bonds present in sulphurous acid,peroxodisulphuric acid and pyrosulphuric acid,respectively are :

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

List-$I$ (Oxoacids of Sulphur)	List-$II$ (Bonds)
$A$. Peroxodisulphuric acid	$I$. Two $S-OH$,Four $S=O$,One $S-O-S$
$B$. Sulphuric acid	$II$. Two $S-OH$,One $S=O$
$C$. Pyrosulphuric acid	$III$. Two $S-OH$,Four $S=O$,One $S-O-O-S$
$D$. Sulphurous acid	$IV$. Two $S-OH$,Two $S=O$

Choose the correct answer from the options given below.

Upon heating $KClO_3$ in the presence of a catalytic amount of $MnO_2$,a gas $W$ is formed. Excess amount of $W$ reacts with white phosphorus to give $X$. The reaction of $X$ with $HNO_3$ gives $Y$ and $Z$.
$(1)$ $W$ and $X$ are,respectively:
$[A]$ $O_3$ and $P_4O_6$
$[B]$ $O_2$ and $P_4O_6$
$[C]$ $O_2$ and $P_4O_{10}$
$[D]$ $O_3$ and $P_4O_{10}$
$(2)$ $Y$ and $Z$ are,respectively:
$[A]$ $N_2O_3$ and $H_3PO_4$
$[B]$ $N_2O_5$ and $HPO_3$
$[C]$ $N_2O_4$ and $HPO_3$
$[D]$ $N_2O_4$ and $H_3PO_3$
Give the answer of question $(1)$ and $(2)$.