The order of catenation property for $C, Si,$ and $Ge$ is $Ge < Si < C$. What will be the bond dissociation energy (in $kJ \ mol^{-1}$) for $C-C, Si-Si,$ and $Ge-Ge$ bonds respectively?

Buckminsterfullerene contains the following $X$ number of six-membered and $Y$ number of five-membered rings. What is the value of $X$ and $Y$?

Consider the following statements:
$(a)$ $R_2SiO$ is the repeating unit of linear silicones.
$(b)$ $RSiCl_3$ on hydrolysis followed by dehydration gives linear silicones.
$(c)$ Silicones can be used as heat insulators.
$(d)$ Silica is soluble in $HF$.
The correct statement$(s)$ is/are:

Carborundum is obtained when silica is heated at high temperature with

The formula of $3$ membered discrete chain silicate is

In the following reaction,identify the nature of the product formed by the complete hydrolysis of the underlined atom at $R.T.$:
$\underline{S}OCl_2 + H_2O \longrightarrow H_2SO_3 + HCl$