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

5. Chirality

Chirality

Organic Chemistry

5. Chirality

Chirality

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Multiple Choice

Which of the following statements best describes chirality in organic molecules?

Chirality occurs when a molecule has a plane of symmetry.

Chirality occurs when a molecule has an asymmetric carbon atom.

Chirality is only observed in molecules with double bonds.

Chirality is a property of molecules that can be superimposed on their mirror images.

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Verified step by step guidance

Understand the concept of chirality: Chirality in organic chemistry refers to a property of a molecule that makes it non-superimposable on its mirror image. This is similar to how left and right hands are mirror images but cannot be perfectly aligned on top of each other.

Identify the key feature of chiral molecules: A molecule is typically chiral if it contains an asymmetric carbon atom, also known as a chiral center. This is a carbon atom that is bonded to four different groups or atoms.

Evaluate the statement about the plane of symmetry: A molecule with a plane of symmetry is not chiral because it can be divided into two mirror-image halves. Therefore, chirality does not occur when a molecule has a plane of symmetry.

Consider the role of double bonds: Chirality is not dependent on the presence of double bonds. Double bonds can restrict rotation and lead to geometric isomerism, but they do not inherently cause chirality.

Clarify the superimposability aspect: Chirality is indeed a property of molecules that cannot be superimposed on their mirror images. This is a defining characteristic of chiral molecules, distinguishing them from achiral molecules, which can be superimposed on their mirror images.