Chemical Bonding and Molecular Structure — Chemistry STD 11 Science — Question
Gujarat BoardEnglish MediumSTD 11 ScienceChemistryChemical Bonding and Molecular Structure1 Mark
Question
Why $\mathrm{AlF}_3$ is a high melting solid whereas $\mathrm{Sif}_4$ is a gas?
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Answer
$\mathrm{AlF}_3$ is an ionic compound whereas $\mathrm{SiF}_4$ is a non-polar covalent compound.
Hence, interparticle forces in $\mathrm{AlF}_3$ are much stronger that's why it is a high melting solid.
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