The p-Block Elements — Chemistry STD 12 Science — Question

($1$)  $W$ and $\mathbf{X}$ are, respectively

$[A]$ $O_3$ and $P_4 O_6$   $[B]$ $O_2$ and $P_4 O_6$   $[C]$ $O_2$ and $P_4 O_{10}$    $[D]$ $O_3$ and $P_4 O_{10}$

($2$) $Y$ and $Z$ are, respectively

$[A]$ $N_2 O_3$ and $\mathrm{H}_3 \mathrm{PO}_4$

$[B]$ $N_2 O_5$ and $\mathrm{HPO}_3$

$[C]$ $N_2 O_4$ and $HPO_3$

$[D]$ $N_2 O_4$ and $H_3 PO_3$

Give the answer of quetion ($1$) and ($2$)

Statement $(I)$ : Fusion of $\mathrm{MnO}_2$ with $\mathrm{KOH}$ and an oxidising agent gives dark green $\mathrm{K}_2 \mathrm{MnO}_4$.

Statement $(II)$ : Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion.

In the light of the above statements, choose the correct answer from the options given below.