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

question 54

Multiple Choice

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

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Definitions:

Cardiac Output

The volume of blood the heart pumps through the circulatory system in one minute.

Dyspnea

A medical term for the feeling of shortness of breath or difficulty breathing, which can be a symptom of various health conditions.

Capillary Refill

A test to assess blood circulation, where pressure is applied to a nail bed and release time is measured to see how fast blood returns to the area.

Clot Formation

The process by which blood changes from a liquid to a solid state to stop bleeding, involving platelets and coagulation factors.