1. A hydrohen atom near an oxygen atom would be [shielded or deshielded] and its

ID: 801207 • Letter: 1

Question

1. A hydrohen atom near an oxygen atom would be [shielded or deshielded] and its signal would be moved [upfiel or downfield].

2. Aldehyde hydrogens usually show a signal at approximately ____ ppm.

3. The compound used as the standard reference material in 1H NMR and has only 1 signal at 0 ppm is _____.

4. The molecule 1,2-dimethylbenzene would have ______ signals on its spectrum.

5. In ethyl bromide, the signal for the CH3 group would appear as a _____ since it has ______neighbors.

6. The integration for the signals for 2,3-dichlorobutane would be _____.

1)deshielded- downfield

2)10-12 ppm

3)TMS (tetramethylsilane)

4)3

5)triplet, 1.5-1.6 ppm

6)3 and 1 (coessponding to 6H and 2---2 methyl groups eqivalents and two CH groups also equivalents)

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.