40. The proton NMR of a compound, C8H9ClO, has the following peaks. Which compound below best fits the
data?
broad singlet 2.00 (1H) triplet 2.41 (2H) triplet 3.69 (2H) doublet 7.02 (2H) doublet 7.50 (2H) 


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統計: A(11), B(7), C(173), D(9), E(0) #923023
統計: A(11), B(7), C(173), D(9), E(0) #923023