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NEET 2026
Exam
NEET
Year
2026
Subject
Chemistry
Chapter
Carboxylic Acid Derivatives

NEET 2026 · Chemistry · Carboxylic Acid Derivatives

Given below are two statements: Statement-I : Oxidation of p...

Given below are two statements:
Statement-I : Oxidation of pp-nitrotoluene with acidic KMnO4_4 gives an acid that is stronger than benzoic acid.
Statement-II : Reduction of pp-nitrotoluene with Sn/HCl followed by neutralization gives an amine that is more basic than aniline.
In light of the above statements, choose the most appropriate answer from the options given below:

Options

  1. AStatement-I is incorrect but Statement-II is correct.
  2. BBoth Statement-I and Statement-II are correct.
  3. CBoth Statement-I and Statement-II are incorrect.
  4. DStatement-I is correct but Statement-II is incorrect.

Correct answer

B. Both Statement-I and Statement-II are correct.

Step-by-step solution

Oxidation of pp-nitrotoluene with acidic KMnO4\text{KMnO}_4 oxidizes the methyl group to a carboxylic acid group, yielding pp-nitrobenzoic acid. The −NO2-\text{NO}_2 group is an electron-withdrawing group (−I-I and −M-M effects), which stabilizes the conjugate base (carboxylate ion). Hence, pp-nitrobenzoic acid is a stronger acid than benzoic acid. Statement-I is correct.

Reduction of pp-nitrotoluene with Sn/HCl\text{Sn}/\text{HCl} reduces the nitro group to an amino group, yielding pp-toluidine (pp-methylaniline). The −CH3-\text{CH}_3 group is an electron-donating group (+I+I and hyperconjugation effects), which increases the electron density on the nitrogen atom and stabilizes the conjugate acid. Hence, pp-toluidine is more basic than aniline. Statement-II is correct.

Both Statement-I and Statement-II are correct.

Answer: Both Statement-I and Statement-II are correct.
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