(Solved): 2. The 'H NMR spectrum of styrene shows that all protons a, b., and c have different chemical shin ...

2. The 'H NMR spectrum of styrene shows that all protons a, b., and c have different chemical shin values. Proton a is coupled to both proton b ( \( f \) \( 17 \mathrm{~Hz}) \) and proton o \( (J=11 \mathrm{~Hz}) \), Proton \( b \) is coupled to both proton a \( (J=17 \mathrm{~Hz}) \) and proton c \( (J=1.4 \mathrm{~Hz}) \) and Proton c is coupled to both proton a \( (J=11 \mathrm{H} z) \) and proton \( b(J=1.4 \mathrm{~Hz}) \). Draw all tree diagrams for the proton a, b and c signals. (30?)