please help me analysis this 2 IR problems based on the possibles i have upload. please explain to help me understand. thank you so much.

18. 001 LEEE TSETEKET SE 3347 10 10 3526 10 2966 4 2931 10 2874 9 2724 64 1182 74 1128 66 1129 06 1114 62 1042 1004 33 961 62 1848 BB 1471 22 1463 26 1989 1367 36 1293 05 1248 6D 941 59 901 68 619 50 681 60 495 70 69 9 4000 000 Lood DOST 1000 300 RAVENURIERII Frequency Bond responsible Structure Ketones CH(CH) H CH- .CH, CH.CH CH.CH Aldehydes H. -CH2-CH, CH,CH, Esters CB40- 4 Amides CH CH NH NH Acids CH - OH OH CH Organic Structures for IR Problem Set - Possible answers for Part 1 problems. Alcohols Hig CH-CH2-CH-OH H.C -CH, OH HC=C-CH2-CHOM Ether OCH Amines CH HAN CECH HC-C -NH CHE Nitriles CEN EN NEC CHEN CH, CON HO -CEN