In the proton NMR spectra of aldehydes and ketones, the protons bonded to carbons adjacent to the carbonyl group typically fall into which of the chemical shift ranges below?
A) 1.0-2.0 ppm
B) 2.0-3.0 ppm
C) 4.0-4.5 ppm
D) 7.0-8.0 ppm
E) 9.0-10.0 ppm

Question

Quizplus · Accepted Answer

The protons bonded to carbons adjacent to the carbonyl group typically fall within the range of 2.0-3.0 ppm, due to the deshielding effect of the carbonyl group.

In the Proton NMR Spectra of Aldehydes and Ketones, the Protons