Question
Chemistry Question on Chemical bonding and molecular structure
Which compound is highest covalent?
A
LiCI
B
LiF
C
LiBr
D
Lil
Answer
Lil
Explanation
Solution
The magnitude of polarised or increased covalent character depends upon a number of factors. These factors are 1. Small size of cation : Smallest size of cation greater is its covalent character. 2. Large size of anion : Larger the size of anion greater is its covalent character. 3. Large charge on either of the two ions : As the charge on the ion increases, the covalent character increases. Hence, In Lil, due to larger size I−,LiI is more covalent.