At what temperature does dioxygen gas liquefy and at what temperature does it freeze?

Which of the following is $NOT$ a property of ozone $(O_3)$?

Which of the following hydrides of Group $16$ elements has the highest reducing property?

What is the product formed when $PCl_5$ reacts with concentrated $H_2SO_4$?

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 $(2)$.

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.