16.How many hydrogens in the structure of 2,3-dimethylcyclopentanone are replaced by deuteriums when it is shaken in D2O containing trace hydroxide?
(A) 1
(B) 2
(C) 3
(D) 6
(E) 7

答案：登入後查看
統計： A(0), B(0), C(0), D(1), E(0) #3829715