問題詳情

13.How many CH3 groups are there in the compound 4-ethyl-2,4-dimethylhexane?
(A)
(B)
(C)
(D)5

參考答案

答案:D
難度:適中0.461538
統計:A(1),B(4),C(1),D(6),E(0)

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