Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

9. Alkenes and Alkynes

Dehydration Reaction

Organic Chemistry

9. Alkenes and Alkynes

Dehydration Reaction

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Multiple Choice

Which of the following reactions is a dehydration reaction?

Addition of water to an alkene to form an alcohol

Hydrolysis of an ester to form an alcohol and a carboxylic acid

Oxidation of a primary alcohol to an aldehyde

Conversion of an alcohol to an alkene

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Verified step by step guidance

Understand the concept of a dehydration reaction: A dehydration reaction involves the removal of a water molecule from a compound, typically resulting in the formation of a double bond.

Identify the functional groups involved: In the conversion of an alcohol to an alkene, the starting material is an alcohol, which contains an -OH group.

Recognize the mechanism: The dehydration of an alcohol typically involves the elimination of a water molecule, where the -OH group and a hydrogen atom from an adjacent carbon are removed, forming a double bond between the two carbon atoms.

Compare with other reactions: Addition of water to an alkene is a hydration reaction, hydrolysis of an ester involves breaking a bond with water, and oxidation of a primary alcohol involves the addition of oxygen or removal of hydrogen, none of which are dehydration reactions.

Conclude that the conversion of an alcohol to an alkene is the dehydration reaction, as it involves the removal of water and formation of a double bond.