wwhich one of the following will have a low heat of fusion?
(A)a covalent solid

(B)an ionic solid

(C)a mettallic solid

(D)a molecular solid

Molecular solids will have low heat of fusion as inter molecular force of attraction is weakest in molecular solid. In molecular solid, the constituent particles are either held by weak van der waal forces or hydrogen bonding.That is comparatively very weak from ionic , covalent or metallic bonding.

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