Organic Chemistry ACS Exam (2026/2027) | Latest Questions | 100% Verified Answers | A+

Organic Chemistry ACS Exam (2026/2027)
| Latest Questions | 100% Verified Answers |
A+
• constitutional isomers -✓✓same formula, different connectivity


• stereoisomers -✓✓same formula, different spatial arrangement


• enantiomers -✓✓non-superimposable mirror images


• diastereomers -✓✓stereoisomers that are not mirror images of each
other


• R configuration -✓✓clockwise


• S configuration -✓✓counter clockwise


• what functional groups does a peptide bond contain -✓✓amide


• what functional groups does a lipid contain -✓✓esters


• what functional groups do amino acids contain? -✓✓aromatic rings

,• meso compound -✓✓molecule with multiple stereo centers and it is
superimposable on its mirror image


• NO2 prefix -✓✓nitro


• CH=CH2 prefix -✓✓vinyl


• CH2CH=CH2 prefix -✓✓allyl


• phenol -✓✓


• benzoic acid -✓✓


• aniline -✓✓


• toluene -✓✓


• three types of disubstituted benzenes -✓✓ortho-1,2
meta-1,3
para-1,4


only use when you have ONLY 2 substituents

, • benzene -✓✓


• as you increase heat of combustion, what happens stability? -✓✓it
decreases


• Carbon 13 NMR Resonances -✓✓0-80 sp3c
125-150 aromatic
160-180 esters/acids
200-220 aldehydes/ketones


• H 1 NMR Resonances -✓✓0.9-1.5 sp3 C
2-2.5 allylic H
3-4.5 O-CH3
4.5-6.5 vinylic
7-8.5 aromatic
10 aldehyde
10-12 carboxylic acid


• IR Resonances -✓✓3400 OH and NH
3100-3000 sp2 C
2100 triple bonds
1700 ketones