Chemistry - GOC Question with Solution | TestHub
ChemistryGOCAromaticityMedium2 minQB
ChemistryMediumsingle choice
Which of the following ions of the ten-membered ring is aromatic ? (assume planar rings)
(a) 
cyclodecapentaenyl cation
(b) 
cyclodecapentaenide anion
Options:
Answer:
C
Solution:
The cation has 10 π electrons (5 bonds, empty p orbital : 4n+2, n = 2) and is aromatic. The anion has 12 π electrons (4n, n = 3) and is anti-aromatic. Only (a).
Stream:JEESubject:ChemistryTopic:GOCSubtopic:Aromaticity
⏱ 2mℹ️ Source: QB
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