What Is the Correct Assignment of the Number of Signals

question 32

Multiple Choice

What is the correct assignment of the number of signals in the ¹³C NMR spectra of the following disubstituted benzene derivatives?

• A)I = 3 signals; II = 3 signals; III = 2 signals
• B)I = 3 signals; II = 4 signals; III = 2 signals
• C)I = 6 signals; II = 6 signals; III = 6 signals
• D)I = 3 signals; II = 4 signals; III = 3 signals

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