P Block Elements Question 649
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 Fajan’s rule, the 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 size 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$
BETA
