Final Quiz

Question 1

Gas chromatography can be used to separate….

Answer 1

two volatile compounds

Question 2

When considering acid-base extraction in an aqueous solution, which functional groups will be acidic?

Strong acids:

Weak acids:

Answer 2

strong acids: carboxylic acids

weak acids: alcohols on aromatic rings

Question 3

UV-vis spectroscopy provides valuable information about..

Answer 3

conjugation

Question 4

How many peaks will appear in the 13C NMR spectrum for the following compound?

https://csbsju.instructure.com/courses/18908/files/2622452/preview

Answer 4

6

Question 5

How many signals would the following molecule show in its 1H NMR spectrum?

https://csbsju.instructure.com/courses/18908/files/2622434/preview

Answer 5

5

Question 6

In a proton NMR spectrum, which of the following will appear between 2 and 4 ppm on the spectrum?

alkyne 
  methyl 
  H on C-O 
  benzene 
  aldehyde 
  alkene

Answer 6

alkyne

Question 7

Predict the expected chemical shift for the indicated protons.

https://csbsju.instructure.com/courses/18908/files/2622457/preview

Answer 7

4.2 ppm

Question 8

Provide the integration of hydrogens for the proton NMR spectrum of CH3OCH2CH2OCH3

Answer 8

3:2

Question 9

Which integration ratio, observed from left to right on the NMR spectrum, is consistent with p-methoxy benzaldehyde (CH3OC6H4CHO)?

Answer 9

1:2:2:3

Question 10

Which structure best fits the spectra provided below?

https://csbsju.instructure.com/courses/18908/files/2622425/preview

Answer 10

B

Question 11

The following spectra most likely belongs to which structure (C8H9NO)?

https://csbsju.instructure.com/assessment_questions/185317/files/495616/download?verifier=Hd53nRSXWmsBK7eHlBO83JrKd7OC3U9coLUyH5nY

Answer 11

4