An unknown compound, C₉H₁₂, gave the following NMR spectrum: Triplet at 1.21 ppm (3H) Singlet at 2.30 ppm (3H) Quartet at 2.60 ppm (2H) Singlet at 7.04 ppm (4H)
What is the structure of the compound?

Question

An unknown compound, C₉H₁₂, gave the following NMR spectrum: Triplet at 1.21 ppm (3H) Singlet at 2.30 ppm (3H) Quartet at 2.60 ppm (2H) Singlet at 7.04 ppm (4H)
What is the structure of the compound? An unknown compound, C<sub>9</sub>H<sub>12</sub>, gave the following NMR spectrum: Triplet at 1.21 ppm (3H) Singlet at 2.30 ppm (3H) Quartet at 2.60 ppm (2H) Singlet at 7.04 ppm (4H) What is the structure of the compound? A) I B) II C) III D) IV E) V

An unknown compound, C<sub>9</sub>H<sub>12</sub>, gave the following NMR spectrum: Triplet at 1.21 ppm (3H) Singlet at 2.30 ppm (3H) Quartet at 2.60 ppm (2H) Singlet at 7.04 ppm (4H) What is the structure of the compound? A) I B) II C) III D) IV E) V

Quizplus · Accepted Answer

The triplet at 1.21 ppm (3H) indicates a CH3 group, the singlet at 2.30 ppm (3H) indicates a CH3 group, the quartet at 2.60 ppm (2H) indicates a CH2 group, and the singlet at 7.04 ppm (4H) indicates a set of four aromatic protons on a monosubstituted benzene ring. This pattern corresponds to the structure of compound II.

An Unknown Compound, C9H12, Gave the Following NMR Spectrum: Triplet

An Unknown Compound, C₉H₁₂, Gave the Following NMR Spectrum: Triplet