$P_2O_5$ is used extensively as a

In the following reaction,identify the nature of the product formed by the complete hydrolysis of the underlined atom at $R.T.$:
$\underline{S}O_3 + H_2O \longrightarrow H_2SO_4$

In the following reaction,identify the nature of the product formed by the complete hydrolysis of the underlined atom at $R.T.$:
$\underline{P}_4O_6 + H_2O \longrightarrow H_3PO_3$

An element $(X)$ when burnt in oxygen forms a neutral oxide $(XO)$ and an acidic oxide $(XO_2)$. The element $(X)$ is:

Which element of group $14$ decomposes steam to form dioxide and dihydrogen gas?

An example of a neutral oxide is