How would you expect the melting point of CCI, to compare to that of NaCl? It should be lower because NaCl forms an extended ionic crystal lattice, whereas C4 is a covalently-bonded small molecule. It should be similar since they are both ionic solids. It should be higher because the bonds are stronger due to the higher charge on C (+4). It should be higher because CCI, is larger than NaCl. It is not possible to say anything about their melting points without more information.

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