Which of the following is/are ionic in nature?
$(i)$ $GeF_4$ $(ii)$ $SnF_4$ $(iii)$ $PbF_4$

What is obtained by the reaction of $N_2$ with calcium carbide $(CaC_2)$?

In which of the following silicates,only two corners per tetrahedron are shared?
$I$. Pyro silicate
$II$. Cyclic silicate
$III$. Double chain silicate
$IV$. Single chain silicate
$V$. $3D$ silicate
$VI$. Sheet silicate

Assertion : $PbI_4$ is a stable compound.
Reason : Iodide stabilizes higher oxidation state.

Two statements are given below.
Statement $I$: $SnF_4$ and $PbF_4$ are ionic in nature.
Statement $II$: $GeCl_2$ is more stable than $GeCl_4$.
The correct answer is:

The main reason that $SiCl_{4}$ is easily hydrolysed as compared to $CCl_{4}$ is that