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 is an example of a dehydration synthesis reaction?

Oxidation of an alcohol to form a ketone

Addition of water to an alkene to form an alcohol

Hydrolysis of an ester into an alcohol and a carboxylic acid

Formation of an ester from an alcohol and a carboxylic acid

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Verified step by step guidance

Understand the concept of dehydration synthesis: Dehydration synthesis is a chemical reaction where two molecules are joined together with the removal of a water molecule. This is a key process in forming larger molecules from smaller ones.

Identify the components involved in the formation of an ester: An ester is typically formed from an alcohol and a carboxylic acid. In this reaction, the hydroxyl group (OH) from the alcohol and the hydrogen (H) from the carboxylic acid combine to form water (H₂O), which is removed.

Recognize the role of dehydration in the reaction: The removal of water is the dehydration part of the synthesis. This is what differentiates dehydration synthesis from other types of reactions, such as hydrolysis, which involves the addition of water to break bonds.

Compare the given reactions: Evaluate each option to determine which involves the removal of water and the formation of a new bond. The formation of an ester from an alcohol and a carboxylic acid fits the criteria for dehydration synthesis.

Conclude with the correct identification: The formation of an ester from an alcohol and a carboxylic acid is an example of dehydration synthesis because it involves the removal of a water molecule to form a new bond between the alcohol and the carboxylic acid.