A compound with molecular formula C₈H₁₀ produces an IR spectrum with many signals, including 3108, 3066, 3050, 3018, and 1608 cm^-1. The ¹H NMR spectrum of this compound exhibits a singlet at 2.2 ppm (I = 6H) and a multiple t at 7.1 ppm (I = 4H). The ¹³C NMR spectrum of this compound exhibits signals at 19.7, 125.9, 129.6, and 136.4 ppm.

a. Draw the structure of this compound.

b. What is the common name of this compound?

c. Treating this compound with chromic acid yields a product with molecular formula C₈H₆O₄. Draw the product of this reaction.