Answer:
Silicon
dioxide \[(Si{{O}_{2}})\] is a covalent solid in which the atoms are linked by
covalent bonds resulting in a giant crystal. On the other hand, solid carbon
dioxide (or dry ice) is a molecular solid in which the molecules of \[C{{O}_{2}}\]
are held together by weak van der Waa's forces of attraction. Therefore,
attractive forces in silicon dioxide are more than in solid carbon dioxide. As
a result, the latent heat of fusion of the former is more.
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