A) \[NaF\]
B) \[CaC{{l}_{2}}\]
C) \[BeB{{r}_{2}}\]
D) \[KI\]
Correct Answer: C
Solution :
According to Fajan's rule, "small size of cation and large size of anion increase the covalent character. Hence,\[BeB{{r}_{2}}\]has maximum covalent character.
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