Where Do the Carbonyl Signals Appear in the ¹³C NMR

question 25

Multiple Choice

Where do the carbonyl signals appear in the ¹³C NMR spectrum of carboxylic acid derivatives?

• A)1700 cm^-1
• B)180-160 ppm
• C)2)5-3.0 ppm
• D)100-80 ppm

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Definitions:

Tracheal Rings

C-shaped rings of cartilage that reinforce and maintain the open structure of the trachea, allowing air to flow into the lungs.

Hyaline

A type of smooth, translucent cartilage found at the ends of bones to reduce friction and absorb shock.

Cartilage

A flexible, connective tissue found in various parts of the body including joints, rib cage, and ear, providing support and shock absorption.

Larynx

The voice box located in the throat, responsible for voice production, breathing, and protecting the trachea against food aspiration.