All of the Xanthines Have Similar Effects

question 11

Multiple Choice

All of the xanthines have similar effects.But which one has the greatest overall effect?

• A)caffeine
• B)theobromine
• C)theophylline
• D)muscadine

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Definitions:

Septet

A splitting pattern in NMR spectroscopy indicating seven adjacent hydrogens.

Doublet

A pair of closely related spectral lines or energy levels, often observed in spectroscopy due to splitting of a single level into two by interaction effects.

NMR

Nuclear Magnetic Resonance, a technique used to observe the local magnetic fields around atomic nuclei, providing detailed information about the structure, dynamics, reaction state, and chemical environment of molecules.

IR

Infrared spectroscopy, a technique used to identify and study chemicals by analyzing their infrared light absorption patterns.