Which one of the following does not correctly represent the correct order of the property indicated against it?

The correct order of increasing melting point for Ti, V, Cr, and Mn is not Ti<V<Cr<Mn. The melting points are influenced by several factors including the number of unpaired electrons and the strength of metallic bonding. While generally there's an increase in melting point across the transition series due to increasing number of unpaired electrons leading to stronger metallic bonding, exceptions occur due to variations in crystal structure and other factors. Therefore, Ti<V<Cr<Mn; increasing melting point is incorrect.