Under suitable conditions ${{\rm{C}}_6}{{\rm{H}}_5}{\rm{C}}{{\rm{H}}_2}{\rm{OH}}\left( A \right),\;\,{{\rm{C}}_6}{{\rm{H}}_5}{\rm{OH}}\left( B \right)$ and ${{\rm{C}}_6}{{\rm{H}}_5}{\rm{COOH}}\left( C \right)$ can act as acids. The increasing order of their acidic strengths is:

NEET UG CHEMISTRY MCQ: ALDEHYDES & KETONES & CARBOXYLIC ACIDS

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Under suitable conditions

{\mathrm{C}_6}{\mathrm{H}_5}\mathrm{C}{\mathrm{H}_2}\mathrm{OH}\left( A \right),\;\,{\mathrm{C}_6}{\mathrm{H}_5}\mathrm{OH}\left( B \right)

and

{\mathrm{C}_6}{\mathrm{H}_5}\mathrm{COOH}\left( C \right)

can act as acids. The increasing order of their acidic strengths is:

View answer and explanation

Correct option: A

A < B < C

Option A (

A < B < C

) is correct because the acidity increases in the order: alcohol < phenol < carboxylic acid due to resonance stabilization of the conjugate base.