Chapter 14.6, Problem 8P

The $300$-MHz $$

${}^{\text{1}}\text{H}$

NMR spectrum of $\text{1,4-dimethylbenzene}$ looks exactly like that of ${\text{CH}}_3{\text{OCH}}_2\text{CN}$ except the chemical shifts of the two peaks are $\text{δ 2}\text{.2}$ and δ $7.0$. Assign the peaks to the appropriate protons of $\text{1,4-dimethylbenzene}$.