I hope You all like it. I hope It is very beneficial for you all. I really thought that you all get enough knowledge from this presentation. This presentation is about materials and their classifications. After you read this presentation you knowledge is not as before.

1. Alkene Reactions
• Addition Reactions - only one product
• 1. Hydrogenation (H2):
Alkene + Hydrogen --> Alkane
• 2. Halogenation (X2):
Alkene + diatomic halogen --> Dihaloalkane
• 3. Halgenation (HX):
Alkene + HX --> Haloalkane
• 4. Hydration (HOH):
Alkene + HOH --> alcohol
• 5. Polymerization:
Many alkenes add together into a long alkane chain

2. Alkene Reactions

3. 1. Hydrogenation Reaction
• Alkene + Hydrogen --> Alkane
• Hydrogen molecule adds to carbons with double bond.
CH2
H
C
H3C + H2
C
H
C
H3C
H
H
H HH H
CH3
H2
C
H3C
C
C
H3C
H
H H
H
H
C
C

4. Alkene Reactions

5. Alkene Reactions

6. 2. Halogenation Reaction
• Alkene + Halogen --> Dihaloalkane
• Halogen molecule adds to carbons with double bond.
CH2
H
C
H3C
C
H
C
H3C
H
H
C
C
+ Br2
Br Br
CH2CH
H3C
Br
Br
C
C
H3C
H
Br Br
H
H

7. Alkene Reactions

8. Unsymmetrical Addition Reactions
• Markovnikov’s Rule
• For double bonds that have unequal numbers of
hydrogen atoms attached.
• For unsymmetrical reactants such as HX and HOH
• The hydrogen of the reactant goes to the carbon of
the double bond that already has the most hydrogen
atoms. “the rich get richer”
• The -X or the -OH go the other carbon (the one with
the least amount of hydrogen

9. 3. Halogenation Reaction
• Alkene + HX --> haloalkane
• HCl molecule adds to carbons with double bond.
CH2
H
C
H3C
C
H
C
H3C
H
H
C
C
+ HCl
HCl
H3C
CH CH3
Cl
C
C
H3C
H
H
H
H
Cl
Mark's Rule

10. Alkene Reactions

11. 4. Hydration Reaction
• Alkene + HOH --> alcohol
• HOH molecule adds to carbons with double bond.
CH2
H
C
H3C
C
H
C
H3C
H
H
C
C
Mark's Rule
+ HOH
HOH
H3C
CH CH3
HO
C
C
H3C
H
H
H
H
OH

12. Alkene Reactions

13. 5. Polymerization Reaction
• Alkene + Alkene + Alkene --> long chain of carbons
• Double bonds convert to single bonds
C C
H
H
H
H
C C
H
H
H
H
C C
H
H
H
H
C C
H
H
H
H
C C
H
H
H
H
C C
H
H
H
H
C
H2
H2
C
C
H2
H2
C
C
H2
H2
C
C C
H
H
H
H
C C
H
H
H
H
C C
H
H
H
H
........ .. ..

14. Alkene Reactions
What is the structure for

15. Alkene Reactions

16. Alkene Reactions

17. Alkene Reactions