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Chemistry - GOC Question with Solution | TestHub

ChemistryGOCRESONANCE AND MESOMERIC EFFECTEasy2 minPYQ_2011

ChemistryEasysingle choice

$The correct decreasing order of p K_{a} is$

Options:

Answer:

Solution:

Weaker acids have higher $p K_{a} \cdot - OCH_{3}$ at meta-position exerts only $- I$ effect, hence increase the acidity. $- I$ effect order : $- NO_{2} > - OCH_{3} > - Cl$ . $- CH_{3}$ has $+ I$ effect. So order is (1).

Stream:AIIMSSubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT

⏱ 2mℹ️ Source: PYQ_2011

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