Every test is different, but for me it was more like 50% predict the product. There was aromaticity, steroechem, separation, Hnmr analysis, acid-base questions, compare/contrast Sn1 and Sn2, radical stability, IUPAC nomenclature, I could go on for awhile.
If you only memorize reactions, you will be in for a rude awakening. That is assuming you get a test that was similar to mine.