COMEDK · Chemistry · 28. Carboxylic Acid Derivatives
Consider the acid strength of the carboxylic acids.
\(\mathrm{~ I . ~ P h C O O H ~ I I . ~ o - N}\)
III. \(p-\mathrm{NO}_{2} \mathrm{C}_{6} \mathrm{H}_{4} \mathrm{COOH} \quad\) IV. \(m-\mathrm{NO}_{2} \mathrm{C}_{6} \mathrm{H}_{4} \mathrm{COOH}\)
- A I > II > III > IV
- B IV \(>I I I>I I>I\)
- C II \(>I I I>I V>I \quad\)
- D II \(>I V>I I I>I\)
Answer & Solution
Correct Answer
(C) II \(>I I I>I V>I \quad\)
Step-by-step Solution
Detailed explanation
Due to \(-I\) and \(-R\)-effects of \(-\mathrm{NO}_{2}\) group, nitrobenzoic acids are stronger acids, than benzoic acid Due to ortho-effect, \(o\)-nitrobenzoic acid is the strongest acid. In \(p\)-nitrobenzoic acid both \(-R\)-effect and \(-I\)-effect of the…
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