11.Avery old bottle labeled only"chlorinated benzene"was found in the stockroom. E) Ans:D resent in the proton NMR for ethylpropanoate? unt TMS as A)2 B)3C)4 D)5E)6 Ans:C Page6Page 6 11. A very old bottle labeled only “chlorinated benzene” was found in the stockroom. Capillary GC showed (surprisingly) that the compound was pure, and a proton-decoupled 13C NMR spectrum showed only two peaks. Which of the following compounds was in the bottle? A) Cl B) Cl Cl C) Cl Cl D) Cl Cl E) Cl Cl Cl Ans: D 12. How many different signals will be present in the proton NMR for ethylpropanoate? (Do not count TMS as one of the signals!) A) 2 B) 3 C) 4 D) 5 E) 6 Ans: C