35. An unknown organic substance of mole..-阿摩線上測驗
35. An unknown organic substance of molecular formula C3H5O2Cl was found to exhibit the following spectral properties: IR: (dilute CCl4 solution) 2900 cm⁻¹ (broad); 1710 cm⁻¹ (strong) NMR: (CCl4 solution) singlet at δ 12.0, triplet at δ 3.7, triplet at δ 2.8 Which of the following structural formulas is consistent with these data? (Please refer to the actual exam paper for the structures)