Chemistry Fundamental Principles of Organic Chemistry NUMS 2023
PMDC Verified Question 34 of 83
Homocyclic organic compounds are sub divided into two types namely:
A
Alicyclic and Aromatic
B
Open chain and branched chain
C
Aromatic and non-aromatic
D
Antiaromatic and anti-alicyclic
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Alicyclic and Aromatic
Concept:

Homocyclic (carbocyclic) compounds consist of rings made entirely of carbon atoms. Their chemical behavior necessitates two distinct sub-classifications.

Solution:

  • Alicyclic: Ring compounds that lack aromatic stabilization and generally mimic the chemical properties of open-chain aliphatic compounds (e.g., cyclohexane).


  • Aromatic: Ring compounds that contain a stable, delocalized pi-electron cloud obeying Huckel's rule (e.g., benzene), displaying unique substitution chemistry.


  • Thus, homocyclic compounds are divided into alicyclic and aromatic.


Why other options are incorrect:

Open and branched chains refer to acyclic compounds. Option D contains fabricated terms ("anti-alicyclic").

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