試題詳解

3. For each compound below, which one will give 3 signals in its normal, broadband decoupled ¹³C NMR spectra, (assume the resolution is good to identify all different signal) 
(A) Ⅰ, Ⅱ, Ⅲ
(B) Ⅱ, Ⅲ 
(C) Ⅲ, IV, V
(D) Ⅲ, V
(E) None of the above