Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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W: Which of the following molecules is aromatic. Our teacher says the answer is c bc it’s a heterocyclic aromatic. Can someone explain why C was not the answer then as well. They both have 2 double bonds so I can’t figure out what’s different t them
![**Chemical Structures and Nomenclature**
Here we present five different chemical structures labeled A through E. Each structure depicts a unique cyclic compound with various elements and charges indicated. Below each structure, they are assigned a letter for reference:
- **Structure A**: A five-membered ring with a positive charge in a corner; likely indicates a cationic species.
- **Structure B**: A five-membered carbon ring with alternating single and double bonds; this is a conjugated system resembling cyclopentadiene.
- **Structure C**: A six-membered heterocyclic ring with an oxygen atom; two double bonds are present, indicating a furan-type structure.
- **Structure D**: A three-membered triangle with a negative charge at one vertex, suggesting a silacyclopropenylide anion.
- **Structure E**: A five-membered ring with a sulfur atom; this indicates a thiophene-like compound.
Choices are presented below the structures for identification:
- a) A
- b) B
- c) C
- d) D
- e) E](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7162f5a4-a0e5-4bd0-aafa-d48500254236%2F3a2602ff-6dba-4101-8114-4a490a8119f1%2F7w7nmkw_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Chemical Structures and Nomenclature**
Here we present five different chemical structures labeled A through E. Each structure depicts a unique cyclic compound with various elements and charges indicated. Below each structure, they are assigned a letter for reference:
- **Structure A**: A five-membered ring with a positive charge in a corner; likely indicates a cationic species.
- **Structure B**: A five-membered carbon ring with alternating single and double bonds; this is a conjugated system resembling cyclopentadiene.
- **Structure C**: A six-membered heterocyclic ring with an oxygen atom; two double bonds are present, indicating a furan-type structure.
- **Structure D**: A three-membered triangle with a negative charge at one vertex, suggesting a silacyclopropenylide anion.
- **Structure E**: A five-membered ring with a sulfur atom; this indicates a thiophene-like compound.
Choices are presented below the structures for identification:
- a) A
- b) B
- c) C
- d) D
- e) E
Expert Solution
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Aromatic compounds are those compounds which follow (4n+2)π Huckel's rule.
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