Chemistry - GOC Question with Solution | TestHub
ChemistryGOCAromaticityMedium2 minQB
ChemistryMediumsingle choice
Explain why A and B are different compounds, but C and D are identical.
(A) 
(B) 
(C) 
(D) 
Options:
Answer:
C
Solution:
Cyclobutadiene is anti-aromatic, and its double bonds are localised (rectangular), so the 1,2- isomers with D on a C=C bond (A) and on a C-C bond (B) are different compounds. In benzene (aromatic) the π electrons are delocalised, so C and D are only resonance structures of the same molecule.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:Aromaticity
⏱ 2mℹ️ Source: QB
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