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A researcher synthesizes isobutyric acid through the oxidation of isobutyl alcohol with potassium permanganate. The reaction was completed in a diethyl either solvent. In order to extract isobutyric acid from the solvent, the researcher should wash the solution with: a)…
A synthetic chemist must synthesize an alkyl halide using an alcohol and HCl. While she does not have many available solvents, she concludes that with the right reaction conditions, the alcohol can serve as both the substrate and the solvent.…
Which compound will migrate the fastest during thin layer chromatography using silica plates? A. Compound 1 because it is more polar and will interact more strongly with the stationary phase B. Compound 1 because it is more nonpolar and will…
The compound shown below is synthesized through the reductive amination of acetone with ammonia using copper chromite. It reacts with organolithium reagents to produce LDA, a strong, non-nucleophilic base. What is the IUPAC name of this compound? Diisopropylamine Diisobutylamine Di-tert-propylamine…
Mutarotation refers to a change in optical rotation of chiral molecules due to the opening and closing of cyclic sugar rings as they switch between their alpha and beta anomers. Which of the following molecules is a β-carbohydrate? Click for…
The molecule above is sent through a mass spectrometer. Which of the following is the chemical species represented by a peak at m/z 43? A. methyl carbocation B. ethyl carbocation C. propyl carbocation D. butyl carbocation Click for Explanation Each…
A chiral carbon, C, is bonded to four different substituent groups: A, B, C, and D. Which compound is identical to the molecule depicted above? Click for Explanation A chiral carbon, C, is bonded to four different substituent groups: A,…
Consider the following reaction: Reactions 1 and 2 can be respectively characterized as: A. peptide bond formation, nucleophilic acyl addition B. polymerization, hydrolysis C. hydrolysis, peptide bond formation D. nucleophilic addition, hydrolysis Click for Explanation The reaction depicted shows two…
Plane-polarized light will NOT be rotated by which of the following molecules: A. I only B. III only C. II and III only D. I and III only Click for Explanation A. I only B. III only C. II and…
All of the following molecules are identical EXCEPT: Click for Explanation This question asks the examinee to determine the molecule that has a relative configuration different than the others. The best method to answer this question is to determine the…