A) \[Ca{{F}_{2}}>CaC{{l}_{2}}>CaB{{r}_{2}}>Ca{{I}_{2}}\]
B) \[Ca{{I}_{2}}>CaB{{r}_{2}}>CaC{{l}_{2}}>Ca{{F}_{2}}\]
C) \[CaB{{r}_{2}}>Ca{{I}_{2}}>Ca{{F}_{2}}>CaC{{l}_{2}}\]
D) \[CaC{{l}_{2}}>CaB{{r}_{2}}>Ca{{I}_{2}}>Ca{{F}_{2}}\]
Correct Answer: A
Solution :
[a] As the size of the anion increases, the covalent character increases and hence the m.p. decrease.
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