Question
Assign an appropriate reason for each of the following statements:
SiF62– is known but SiCl62– is not known.
Solution
SiF62– is known but SiCl62– is not known. This is because of the size of atom.
The size of fluorine is small as compare to chlorine.
(a) The steric repulsions are less in SiF62– due to the smaller size of the F atom
(b) The interaction of the lone pairs of electrons on the F atom with Si are stronger than that of chlorine lone pairs.
The size of fluorine is small as compare to chlorine.
(a) The steric repulsions are less in SiF62– due to the smaller size of the F atom
(b) The interaction of the lone pairs of electrons on the F atom with Si are stronger than that of chlorine lone pairs.
