Which is stronger - the attractive forces between water molecules and chromium and chloride ions, or the combined ionic bond strength of crcl2 and intermolecular forces between water molecules? explain?

Out of the two, the forces between water molecules and chromium and chloride ions is greater. This is proven by the fact that chromium chloride is slightly soluble in water, about 565 grams per liter.
In order for a substance to be soluble, the attraction of the ions to the water molecules must exceed the attraction between its own molecules and the water molecules.