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Chemical Bonding and Molecular Structure — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryChemical Bonding and Molecular Structure1 Mark
Question
Why AlF3 is a high melting solid whereas Sif4 is a gas?
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Answer

AlF3 is an ionic compound whereas SiF4 is a non-polar covalent compound.
Hence, interparticle forces in AlF3 are much stronger that's why it is a high melting solid.

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