NAME:_ Multiple Choice: Circle the best answer. 2 points each 1. Which of the following are strongly hydrogen-bonded in the liquid state? a. acid halides b. anhydrides c. esters d. amides e. nitriles
2. While the carbonyl stretching frequency for simple a
Multiple Choice: Circle the correct answer. 3 points each 1) The proton NMR of an unknown compound contains a triplet at 9.8 ppm. Which of the following could be this unknown? a) (CH3)3CCHO d) CH3COCH2Ph b) CH3CH2CH2CO2H e) PhCHO c) CH3CH2CH2CHO
2) The do
Multiple Choice: 3 points each 1. In the 1H NMR , in what region of the spectrum does one typically observe hydrogens bound to the aromatic ring? a. 1.0-1.5 ppm b. 2.0-3.0 ppm c. 4.5-5.5 ppm d. 7.0-8.0 ppm e. 9.0-10.0 ppm
2. How many distinct trich
Multiple Choice: 3 points each 1. The IR peak that distinguishes a 1 amine and a 1 amide is at _cm-1. a. 3450 and 3350 (two peaks) b. 2200 c. 1650 d. 1350
2. Which of the following techniques can readily distinguish between CH3COOCH2CH3 and CH3OOCCH2CH3?