(a) Figure 1 shows 'H-NMR and C-NMR spectral data of compound P (C12His0). From this information, deduce the structure of compound P. 'H-NMR 13C-NMR 0.83 (d, 6H) 2.11 (m, 1H) 207.82, 134.24, 129.36 Compound P 2.30 (d, 2H) 128.60, 126.86, 50.88 3.64 (s, 2H) 50.57, 24.43, 22.48 7.2-7.4 (m, 5H) Figure 1: 'H-NMR and 19C-NMR spectral data of compound P (b) Based on the information below, elucidate the structure of compounds Q and R. Compound Q : CSH100 :8 1.10 (doublet, 6H), 8 2.10 (singlet, 3H), 8 2.50 (septet, 1H) : strong peak near 1720 cm Molecular formula 'H NMR spectrum IR spectrum Compound R Molecular formula 'H NMR spectrum IR spectrum : C;HO :82.43 (singlet, 1H), 8 4.58 (singlet, 2H), 8 7.28 (multiplet, 5H) : broad peak in 3200-3550 cm