Answer :

The decreasing order of their acidic strength:


NO2CH2COOH > FCH2COOH > C6H5COOH.


EXPLAINATION:


Electron withdrawing groups like -NO2, increases the acidity of carboxylic acids by stabilizing the conjugate base through resonance effects, whereas, electron-donating groups decrease the acidity of carboxylic acids by destabilizing the conjugate base through resonance.


We know that the negative inductive effect of nitro group is greater than that of the fluorine atom.


Thus, NO2CH2COOH is most acidic among the given three compounds.


Hence, the decreasing order in terms of their acidic strength is:


NO2CH2COOH > FCH2COOH > C6H5COOH.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Arrange the folloChemistry - Exemplar

Compound ‘A’ was Chemistry - Exemplar

Why are carboxyliChemistry - Exemplar

Carboxylic acids Chemistry - Exemplar