P-Block Elements Ques 185
Question: Amongst $ LiCl,RbCl,BeCl_2 $ and $ MgCl_2 $ . Maximum and minimum ionic character will be shown by the compounds
[RPMT 1999]
Options:
A) $ LiCl,MgCl_2 $
B) $ RbCl,BeCl_2 $
C) $ RbCl,MgCl_2 $
D) $ MgCl_2,BeCl_2 $
Show Answer
Answer:
Correct Answer: B
Solution:
According to the Fajan’s rule largest cation and smallest anion.
as the size of the cation increases ionic character increases,so among the given chlorides the Rb is having larger sine and the element having least size is Be. So, the compound having more ionic character is $RbCl$.The compound having more ionic character is$ BeCl_2$
