AP EAMCET202422 May 2024Evening ShiftChemistryGeneral Organic ChemistryActual
Assertion (A): Carboxylic acids are more acidic than Phenols Reason (R): Resonance structures of carboxylate ion are equivalent, while resonance structures of phenoxide ion are not equivalent
Options
- ABoth and (R) are correct and (R) is the correct explanation of ( A )
- BBoth and (R) are correct But (R) is not the correct explanation of ( A )
- Cis correct but (R) is incorrect
- Dis incorrect but (R) is correct
Correct answer
A. Both and (R) are correct and (R) is the correct explanation of ( A )
Step-by-step solution
Carboxylic acid is stronger because its resonating structures more stable than the phenol. Carboxylic acid: Negative charge on more electronegative oxygen atom so both resonating structure are equal. Negative charge is on carbon which leads to less stability of phenoxide than carboxylate ion