Question:

3,5-Dinitrobenzoic acid will give how many peaks in \( ^{1}H \) NMR?

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Symmetry in molecular structure directly influences the number of distinct signals in NMR spectra.
Updated On: Jun 8, 2025
  • \( \text{4} \)
  • \( \text{3} \)
  • \( \text{2} \)
  • \( \text{1} \)
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The Correct Option is B

Solution and Explanation

3,5-Dinitrobenzoic acid exhibits three distinct proton environments due to substituent symmetry. The nitro groups at positions 3 and 5 reduce chemical inequivalence, leading to fewer signals in \( ^{1}H \) NMR spectrum. Aromatic protons appear as deshielded signals due to electron-withdrawing effects.
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