What type of intermolecular force(s) are found in a

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Are all of these correct?1. What type of intermolecular force(s) are found in a pure sample of carbon monoxide CO?Dipole-dipole and london dispersion2. What type of intermolecular force(s) are found in a pure sample of calcium oxide CaO?Ionic3. Which of the following points on a phase diagram CANNOT be used as a pressure/temperature pair in the Clausius-Clapeyron equation with the ?H of vaporization?Normal melting point