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