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

question 39

Multiple Choice

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

• A) 6
• B) 7
• C) 8
• D) 11

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Definitions:

Suspension

The system of springs, shock absorbers, and linkages that connects a vehicle to its wheels, designed to dampen road impact and improve ride quality.

Kingpins

The main pivot in the steering mechanism of a vehicle, around which the front wheels turn.

Hard-surfacing

A welding process that adds a hard, wear-resistant layer of metal to the surface of a workpiece.

Kingpin Bushings

Components that provide a bearing surface for the kingpin in truck and trailer steering mechanisms, allowing for smooth pivoting.