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

1. A Review of General Chemistry

Intro to Organic Chemistry

Organic Chemistry

1. A Review of General Chemistry

Intro to Organic Chemistry

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Multiple Choice

In the context of organic chemistry, what can scientists infer from the rock layer in which a fossil is found?

The exact species of the organism that left the fossil.

The chemical composition of the fossil.

The age of the fossil based on the layer's geological period.

The specific type of organic molecules present in the fossil.

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Verified step by step guidance

Begin by understanding the concept of stratigraphy, which is the study of rock layers (strata) and layering. This is crucial in determining the age of fossils.

Recognize that each rock layer corresponds to a specific geological period. Scientists use this information to infer the age of fossils found within these layers.

Learn about radiometric dating techniques, which can be used to date the rocks and fossils. This involves measuring the decay of radioactive isotopes within the minerals of the rock.

Understand that the presence of certain index fossils, which are fossils known to have existed during specific time periods, can also help in dating the rock layers and the fossils within them.

Note that while the rock layer can provide information about the age of the fossil, it does not directly inform scientists about the exact species, chemical composition, or specific organic molecules present in the fossil.