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:

Improper Fractions

A type of fraction where the numerator (top number) is greater than or equal to the denominator (bottom number), resulting in a value equal to or greater than one.

Lowest Terms

The most basic version of a fraction, in which both the top number (numerator) and bottom number (denominator) are minimized to their lowest possible values.

Mixed Numbers

Numbers that contain both an integer and a fraction part.

Improper Fractions

Fractions in which the top number (numerator) is equal to or higher than the bottom number (denominator), signifying a value of at least one.