Which of the following statements is true?
A) Only hydrogens that are attached to the same carbon atom are said to be "coupled."
B) Only hydrogens that are attached to adjacent carbon atoms are said to be "coupled."
C) The coupling constant, J, is a measure of the chemical shift for a particular hydrogen or group of hydrogen atoms.
D) The magnitude of the coupling constant, J, depends on the dihedral angle between two hydrogens on adjacent carbons.
E) The coupling constant, J, is independent of the dihedral angle between hydrogens on adjacent carbons.
Correct Answer:
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