Chapter 14.16, Problem 20P

To which of the compounds of Problem $14.16$ does the ${}^{\text{13}}\text{C}$ NMR spectrum of Figure $14.27$ belong?

How many signals would you expect to see in the ${}^{\text{13}}\text{C}$ NMR spectrum of each of the following compounds?

$\text{Propyl benzene}$

$\text{Isopropyl benzene}$

$\text{1,2,3-Trimethylbenzene}$

$\text{1,2,4-Trimethylbenzene}$

$\text{1,3,5-Trimethylbenzene}$