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

Constitutional Isomers

Organic Chemistry

1. A Review of General Chemistry

Constitutional Isomers

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Multiple Choice

Which of the following statements correctly distinguishes constitutional isomers from other types of isomers?

Constitutional isomers have the same molecular formula but differ in the connectivity of atoms.

Constitutional isomers have different molecular formulas but the same connectivity of atoms.

Constitutional isomers differ in the number of atoms present in the molecule.

Constitutional isomers have the same connectivity of atoms but differ in spatial arrangement.

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Verified step by step guidance

Understand the definition of constitutional isomers: Constitutional isomers, also known as structural isomers, have the same molecular formula but differ in the connectivity of their atoms.

Differentiate between molecular formula and connectivity: The molecular formula indicates the number and type of atoms in a molecule, while connectivity refers to how these atoms are bonded together.

Identify the incorrect statements: Constitutional isomers do not have different molecular formulas; they have the same molecular formula. They also do not differ in the number of atoms present, as this would imply a different molecular formula.

Clarify the difference from stereoisomers: Stereoisomers have the same molecular formula and connectivity but differ in the spatial arrangement of atoms. This is not the case for constitutional isomers.

Conclude with the correct statement: The correct distinguishing feature of constitutional isomers is that they have the same molecular formula but differ in the connectivity of atoms.