☰
✕

The p-Block Elements
Question
Wired Faculty App

Assign an appropriate reason for each of the following statements:
SiF62– is known but SiCl62– is not known.

Answer

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.

Sponsor Area

Some More Questions From The p-Block Elements Chapter

Why are pentahalides more covalent than trihalides?

Why is BiH3 the strongest reducing agent amongst all the hydrides of Group 15 elements?

Why is N2 less reactive at room temperature?

Mention the conditions required to maximise the yield of ammonia.

What is the covalency of nitrogen in N2O5?

Bond angle in PH4+ is higher than that in PH3. Why?

Write a balanced equation for the hydrolytic reactions PCl5 in heavy water.