Which of the following oxides is amphoteric in character?

Match List-$I$ with List-$II$.

List-$I$ (Si-Compounds)	List-$II$ (Si-Polymeric/other products)
$A$. $(CH_3)_4 Si$	$I$. Chain silicone
$B$. $(CH_3) Si(OH)_3$	$II$. Dimeric silicone
$C$. $(CH_3)_2 Si(OH)_2$	$III$. Silane
$D$. $(CH_3)_3 Si(OH)$	$IV$. $2D$-Silicone

Choose the correct answer from the options given below:

Assertion : $SiF_6^{2-}$ is known but $SiCl_6^{2-}$ is not.
Reason : Size of fluorine is small and its lone pair of electrons interacts with $d-$orbitals of $Si$ strongly.

$SiCl_4$ on hydrolysis forms '$X$' and $HCl$. Compound '$X$' loses water at $1000^{\circ} C$ and gives '$Y$'. Compounds '$X$' and '$Y$' respectively are:

In the following reaction,assign the nature of the product of complete hydrolysis at $R.T.$ for the underlined atom:
$\underline{Si}H_4 + 4H_2O \longrightarrow H_4SiO_4 + 4H_2$

In the following reaction,assign the correct category for the underlined atom in the product of complete hydrolysis at $R.T.$:
$H_3\underset{-}{P}O_5 + H_2O \longrightarrow H_3PO_4 + H_2O_2$