(a)(d)(b)(e)(c)B-11.Which of the following best describes the nucleophilic addition step in the acid-catalyzedhydrolysis of acetonitrile (CH3CN)?B-12.Saponification (basic hydrolysis) ofwill yield: [mass-18 isotope ofoxygen]B-13.An unknown compound, C9H10O2, did not dissolve in aqueous NaOH. The infrared spectrumexhibited strong absorption at 1730 cm1. The 1H NMR spectrum had signals at 7.2 ppm(multiplet), 4.1 ppm (quartet), and 1.3 ppm (triplet). Which of the following is most likelythe unknown?COHCH2CH3O(a)COCH2CH3O(b)CH2OCCH3O(c)CH2COCH3O(
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