1.

Which of the following calcium halide has more melting point.

Answer»

`CaF_(2)`
`CaCl_(2)`
`CaBr_(2)`
`CaF_(2)`

SOLUTION :Decreasing melting points of II group CALCIUM METAL halides
`CaF_(2) gt CaCl_(2) gt CaBr_(2) gt CaI_(2)`
As the size of the anion increases, the COVALENT character increases hence the DECREASE melting point.


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