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Module 7 Heterocyclic Organic Compounds Exam Questions with Answers.
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Module 7: HeterocyclicOrganic Compounds Exam
Questions with Answers
Denning [Date] [Course title]
, Heterocycles - Correct Answers: Cyclic organic molecules in which one or more carbon atoms are
replaced by heteroatoms, such as oxygen, nitrogen, or sulfur.
Heterocycle Subgroups - Correct Answers: - Aromatic
- Non-aromatic
Common Heteroatoms in Heterocyclic Compounds - Correct Answers: - Oxygen
- Nitrogen
- Sulfur
Non-Aromatic Heterocycles - Correct Answers: Cyclic ethers:
- Epoxides
Sugars
- Glucose (a cyclic hemiacetal)
Aromatic Heterocycles - Correct Answers: Between aromatic and non-aromatic heterocycles, which is
more important?
This class of heterocycle often has unique chemical properties and is found in many natural products
and important drug molecules.
Pyridine - Correct Answers: A six-membered heterocyclic analog of benzene, where one CH unit is
replaced by a nitrogen atom.
Pyridine Geometry - Correct Answers: A flat molecule with near-perfect hexagonal geometry.
The atoms are in the ring are SP2 hybridized.
Pyridine - Correct Answers: This molecule can accept hydrogen bonds with water due to the lone pair on
the nitrogen, and it has a strong dipole moment making it polar.
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