S Block Elements Question 82
Question: In the case of alkali metals, the covalent character decreases in the order:
Options:
A) $ MF>MCl>MBr>MI $
B) $ MF>MCl>MI>MBr $
C) $ MI>MBr>MCl>MF $
D) $ MCl>MI>MBr>MF $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] As the size of halide ion decreases, x $ {{I}^{-}}>B{{r}^{-}}>C{{l}^{-}}>{{F}^{-}}, $ tendency to get polarised by cation $ {{M}^{+}} $ decreases and hence covalent character decreases.
BETA
