MCAT Organic Chemistry Review 2018-2019

Questions 4 and 5 refer to the following table: Compound Retardation Factor in Ether Benzyl alcohol 0.10 Benzyl ...

(A) A (B) B (C) C (D) D 7 . Suppose an extraction with methylene chloride is performed, with the desired comp ...

(A) filtration, followed by acidic extraction, followed by recrystallization. (B) filtration, followed by b ...

(A) Stationary phase (B) Mobile phase (C) Column (D) Fraction 14 . During gravity filtration, a student forgets to he ...

Answers and Explanations DISCRETE PRACTICE QUESTIONS 1 . B Fractional distillation is the most effective procedur ...

6 . A This is an example of reverse-phase chromatography. The solvent system is polar, which means that the most ...

(C), could also be used, but comes with a risk of rendering the titin unusable; the eluent run thro ...

Glossary α-Carbon—The carbon adjacent to a carbonyl; in amino acids, the chiral stereocenter in all amino a ...

Amide—A functional group containing a carbonyl and an amino group (RCONR 2 ). Amino acids—Dipolar compounds ...

Carbonyl—A double bond between a carbon and an oxygen. Carboxylic acid—A functional group that contains a ...

Configuration—The spatial arrangement of the atoms or groups in a molecule. Configurational isomers—Isomers that ca ...

Deshielding—The phenomenon of atoms pulling electron density away from surrounding atoms; in NMR spectroscopy, p ...

environment. Enol—The resonance form of a carbonyl that has a carbon–carbon double bond (ene) and an ...

followed by hydrolysis and decarboxylation. Gas chromatography (GC)—A type of chromatography used to separate ...

Hydroxyquinone—A compound containing a quinone (conjugated ring with carbonyls) and a hydroxyl group. Imine—A ...

Lactone—A cyclic ester; named according to the Greek letter of the carbon closing the ring and for the straight ...

Nonbonded strain—Increased energy that results when nonadjacent atoms or groups compete for the same space; ...

Peptide bond—An amide bond formed between two amino acids through a condensation (nucleophilic acyl substitutio ...

R group—In general, an alkyl chain; in amino acid chemistry, the variable side chain on the α- carbo ...

Shielding—The phenomenon of atoms pushing electron density toward surrounding atoms; in NMR spectroscopy, pulls ...