Question

How do you determine which substance has the highest melting point of a group?

Answer 1

How else but by experiment?

Explanation:

I don't know in which contest you mean `"group"`. I do know that the quickest way to identify an organic compound is to make a few derivatives of the material, and measure the melting points, and compare these with the literature values. See [here.](https://www.scribd.com/doc/79718902/Crc-Handbook-of-Tables-for-Organic-Compound-Identification-3rd-Ed-Zvi-Rappoport)