3. Only one of the compounds below can be the diene in a Diels-Alder reaction. Which is it? (a) worla gieeim s1s et /be erie eiaeriinya daceT wone taubo r ome1orl Jauborq 10 aineps91 alsnqotque 919rw ytelmertboeyale 18 (b) (d) (6) (d) 4. Give the IUPAC names for the following compounds. ised F3C. (a) NO2 OMH (b) 08HeMO (c) Meo

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