How Many Signals Appear in the Proton-Decoupled ¹³C NMR Spectrum

question 40

Multiple Choice

How many signals appear in the proton-decoupled ¹³C NMR spectrum of the following compound?

• A) 7
• B) 8
• C) 9
• D) 11

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Definitions:

Erect

A posture or position that is upright and vertical, or the state of being physically rigid due to the engorgement of blood vessels.

Maxilla

A pair of bones forming the upper jaw, central portion of the facial skeleton, and part of the roof of the mouth, holding the upper teeth.

Cranium

The skull, especially the part enclosing the brain.

Pectoral Girdle

Site of attachment of the upper limb to the trunk; consists of the scapula and the clavicle; also called shoulder girdle.