The increasing order in the melting point is Iodine, Paraffin, Sucrose, and Sodium chloride due to the relative strength of the intermolecular forces.
Melting is a phase change from the solid to the liquid state.
Since the molecules are further apart, the higher the intermolecular forces, the more energy is required for the melting, and the higher the melting point.
We have 4 substances with different kinds of intermolecular forces (IMF):
The increasing order of strength of IMF is:
dispersion forces < dipole-dipole < ion-ion
Iodine and paraffin both have dispersion forces, but paraffin is bigger so there are more intermolecular forces.
The increasing order in the melting point is Iodine, Paraffin, Sucrose, and Sodium chloride due to the relative strength of the intermolecular forces.
Learn more about intermolecular forces here: https://brainly.com/question/13588164
