The Proton NMR Spectrum of an Unknown Compound Contains a Triplet

question 104

Multiple Choice

The proton NMR spectrum of an unknown compound contains a triplet at 9.8 ppm. Which of the following could be this unknown?

• A) (CH₃)₃CCHO
• B) CH₃CH₂CH₂CO₂H
• C) CH₃CH₂CH₂CHO
• D) CH₃CO CH₂Ph
• E) PhCHO

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Definitions:

Marginal Probability

The probability of an event occurring, taken in isolation, without consideration of any other related events.

Car Sales

The number of automobiles sold within a specific period, an indicator of the automotive industry's health and consumer demand.

Conditional Probabilities

The probability of an event occurring given that another event has already occurred, reflecting how the likelihood of the event is affected by the knowledge of another outcome.

V(X + Y)

The variance of the sum of two random variables, considering both their individual variances and the covariance between them.