help me analysis this 2 IR spectrum problems based on the possible answer that i have upload please. and explain to me understand please. i really need to under stand them. thank you.

18. 100 1846 BB 1471 22 1463 26 TSMETTEREIN 10 10 10 4 10 9 64 BBET SE 6 3347 3332 3526 2966 2931 2874 2724 1182 1128 1123 1114 1042 1004 961 1367 36 1293 05 1249 6D 941 69 66 619 50 681 60 495 70 74 66 06 62 106 9 CS 62 4900 0006 toon DOST 1000 05 RAVENURIERII Frequency Bond responsible Structure 13. 001 TRANSMITTEREIN 3609 77 3319 99 3034 04 E 50 89 PODE 1284 1699 1674 1629 15 1465 47 1460 42 1420 44 1362 IB 20 952 64 00261 976 64 797 79 74) 72 2963 15 2835 22 2876 32 49 1254 10 1179 41 1130 77 3060 72 1053 70 1047 68 np 196 616 D 4000 3000 tood 1320 0001 RAVENURBERI Frequency Bond responsible Structure Ketones CH (CH) CH- CH.CH CH,CH, Aldehydes H. -CH2-CHE CH,CH, Esters P-C+ 04 Amides CH CHS NH NH Acids CH - 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