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Grade 12Organic Chemistry

2 bromo benzoic acid is more acidic than 2 chloro benzoic acid.Explain...

Profile image of Maitreya Sinha
14 Years agoGrade 12
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1 Answer

Profile image of Likith Narayan ss
14 Years ago

2 bromobenzene has bromine in ortho position and 2chloro benzene has chlorine in orthoposition therefore there will be hydrogen bond between H and Cl in 2chloro benzene  and hydrogen bond between H and Br in 2 bromobenzene . Cl has more electronegativity than Br.  2chloro  benzene has stronger hydrogen bond due to more electronegativity therefore it requires more temperature to break H+ ion than in 2 bromobenzene.since proton donor is acid therfore 2 bromo benzoic acid is more acidic than 2 chloro benzoic acid

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