The element that does not show catenation is

Which of the following oxides does not react with $NaOH$ as well as with $HCl$?

$P_4O_{10}$ is not used to dry $NH_3$ gas because:

Explain zeolite compounds.

Identify the correct statements from the following.
$i$. Melting points and boiling points of group $13$ elements are much higher than those of corresponding group $14$ elements.
$ii$. $SiO$ only exists at high temperatures.
$iii$. $PbI_4$ does not exist.
$iv$. Buckminster fullerene contains twelve $6$-membered carbon rings and twenty $5$-membered carbon rings.

$Na_2CO_3$ reacts with $SO_2$ in an alkaline medium to form: