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

Which one of the following is a biochemical test used to identify microorganisms?

NMR spectroscopy

Gram staining

Melting point determination

Mass spectrometry

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Verified step by step guidance

Understand the context of the question: The problem is asking about a biochemical test used to identify microorganisms. This involves techniques that can differentiate or identify microbial species based on their biochemical properties.

Consider the options provided: NMR spectroscopy, Gram staining, Melting point determination, and Mass spectrometry. Each of these techniques has specific applications in chemistry and biology.

Evaluate NMR spectroscopy: Nuclear Magnetic Resonance (NMR) spectroscopy is primarily used to determine the structure of organic compounds by analyzing the magnetic properties of atomic nuclei. It is not typically used for identifying microorganisms.

Evaluate Gram staining: Gram staining is a method used to classify bacteria into two groups based on the structural differences in their cell walls. It is a widely used biochemical test in microbiology for identifying microorganisms.

Evaluate Melting point determination and Mass spectrometry: Melting point determination is used to identify and characterize organic compounds based on their melting points, while Mass spectrometry is used to determine the mass-to-charge ratio of ions. Neither is typically used for identifying microorganisms in a biochemical context.