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

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

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統計： A(0), B(0), C(0), D(1), E(0) #3829715

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2026/05/30

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酮類的 α-氫交換反應（α-Hydrog...

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21. Which of the following statements correctly describes the contribution of △S° to△G°?(A) The entropy term makes a greater contribution to AG° at high temperatures.(B) The entropy term makes a greater contribution to AG° at low temperatures.(C) The entropy term makes a greater contribution to AG° in exothermic reactions.(D) The entropy term makes a greater contribution to AG° in endothermic reactions.(E) The entropy term always makes a more significant contribution to AG° than does the enthalpy term.

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

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