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Problems and exercisesCatalytic Hydrogenation

1. Catalytic hydrogenation

Predict the result of the catalytic hydrogenation of the following compounds:

Six alkenes: cis- and trans-but-2-ene, 1,2-dimethylcyclohexene, two bicyclic alkenes with a dimethylated bridge (the second optically pure) and octahydronaphthalene with the double bond at the ring fusion

2. Heats of hydrogenation

Why can heats of hydrogenation be used to compare the stability of isomeric alkenes?

3. How many double bonds?

A compound C10H16 takes up 2 mol of H2 and gives C10H20. How many rings and how many double bonds does it have?

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