Chemistry - GOC Question with Solution | TestHub
ChemistryGOCAromaticityMedium2 minQB
ChemistryMediumsingle choice
Which of the following is unstable at room temperature ?
(A) 
(B) 
(C) 
(D) 
Options:
Answer:
D
Solution:
(A) benzene (6π), (B) the tropylium cation (6π) and (C) furan (6π) are all aromatic and stable. (D) the cyclopentadienyl cation has 4 π electrons in a planar ring : anti-aromatic and unstable. So (D).
Stream:JEESubject:ChemistryTopic:GOCSubtopic:Aromaticity
⏱ 2mℹ️ Source: QB
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