Chemistry - GOC Question with Solution | TestHub
ChemistryGOCAcid BaseMedium2 minQB
ChemistryMediumsingle choice
Compare the two protons H₁ and H₂ shown in the following compound and identify which proton is more acidic.
Options:
Answer:
A
Solution:
Removing H₁ gives an allylic carbanion : 
Removing H₂ gives an ordinary carbanion : 
The allylic anion is resonance-stabilised : the negative charge is shared between C-1 and C-3. The other anion carries its charge on one carbon only. The more stable conjugate base comes from H₁, so the allylic proton H₁ is more acidic.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:Acid Base
⏱ 2mℹ️ Source: QB
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