Chemistry Fundamental Principles of Organic Chemistry MDCAT 2000
PMDC Verified Question 83 of 83
Skeletal formula of an organic compound is given below.



Name of this compound is:
A
Naphthalene
B
Pyrene
C
Anthracene
D
Biphenyl methane
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Anthracene
Concept:

Aromatic hydrocarbons consisting of fused benzene rings have specific common names based on the number and arrangement of the rings.

Formula:

$$ \text{Anthracene} = \text{C}_{14}\text{H}_{10} $$

Solution:

  • Naphthalene consists of two fused benzene rings.


  • Anthracene consists of three linearly fused benzene rings.


  • Since the image shows three rings fused in a straight line, it is anthracene.


Why other options are incorrect:

Naphthalene has only two rings. Pyrene has four fused rings. Biphenyl methane is not a fused-ring structure.

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