Which Group of Small Molecules Best Fit the Boxes Associated

question 53

Multiple Choice

Which group of small molecules best fit the boxes associated with the reaction shown?

• A) I
• B) II
• C) III
• D) IV

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Definitions:

DEPT-90

A nuclear magnetic resonance (NMR) spectroscopy technique that distinguishes between CH and CH3 groups in a molecule by phase modulation.

DEPT-135

A nuclear magnetic resonance (NMR) spectroscopic technique used to distinguish between carbon atoms with different numbers of hydrogen atoms attached in organic compounds.

Carbonyl

A functional group characterized by a carbon atom double-bonded to an oxygen atom, commonly found in aldehydes, ketones, carboxylic acids, and amides.

NMR Spectroscopy

A spectroscopic method that utilizes the magnetic characteristics of specific atomic nuclei to identify the physical and chemical properties of atoms or the molecules they are part of.