Alkene Reactions

Question 1

Alkene —> Alcohol. Name the reagent and type of reaction.

Answer 1

KOH (aq). This is a hydration reaction (adding H and OH).

Question 2

Alkene —> Haloalkane. Name the reagent and process. What is the speed of this reaction?

Answer 2

Halogen (eg. Br2, F2, Cl2). This is a fast addition reaction.

Question 3

Alkene —> Polymer. Name the reagents and its function. Name the process.

Answer 3

Heat or pressure to break double bonds. Polymerisation reaction.

Question 4

Alkene —> Alkane. Name reagents and process.

Answer 4

H2 with a Pt catalyst. Hydrogenation.

Question 5

Alcohol —> Alkene. Name reagents and its function.

Answer 5

Heat / concentrated H2SO4 (strong dehydrating agent which removes hydroxyl group). This is an elimination reaction.