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

question 93

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:

Yearly Income

The total pre-tax earnings received by an individual or household over the course of one year from all sources combined.

SST

Total Sum of Squares, a measure used in statistics to quantify the variance in a dataset.

SSE

Sum of Squares due to Error, a measure of the discrepancy between the data and an estimation model, reflecting the unexplained variance within the model.

Expected Yearly Income

An estimation of the amount of money one is anticipated to earn over the course of a year.