Which of the following statements is not correct ?

Question

$\begin{array}{1 1} \text{All the elements of group 14 from tetra haides with the exception of pdly } \\ \text{All tetrahalides of elements of group 14 are tetrahedral } \\ \text{The stability of the halides of elements of group 14 increases down the group } \\ \text{Sicly exhibits the phenomenon of hydrolysis } \end{array}$