Question

whi is the boiling point of CCl4 more than that of SiCl4

Answer 1

CCl4 would have a higher M.P because of its ability to pack closer in its crystalline structure. Now for boiling point the site I found said that the CCl4 molecules are smaller and can get closer to one another which would lead to a larger contact area between molecules and therefore a larger Intermolecular Force.

Answer 2

The C-Cl bond in CCl4 is more polar and hence results in tighter holding of the molecules and stronger intermolecular forces .Where as in SiCl4 the electronegativity  difference is less and hence intermolecular forces are weaker results in low boiling point .



hope this helps yuh :)