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Which of the following has the lowest me...

Which of the following has the lowest melting point-

A

`CaCl_2`

B

`CaBr_2`

C

`CaI_2`

D

`CaF_2`

Text Solution

Verified by Experts

The correct Answer is:
C
With increase in the size of the halogens (from F to I), covalent character of the corresponding compounds (from `CaF_2" to " CaI_2`) increases. Therefore, melting points of the compounds decrease.
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