64. The cyclic structure of glucose is shown below. What functional groups are present in this molecule? (A) acetal(B) hemiacetal(C) oxime (D) hydrate

38. Which of the following statements applies to the E2 mechanism? (A) It occurs with inversion of stereochemistry. (B) It occurs with racemization of stereochemistry. (C) It proceeds through the more stable carbocation intermediate. (D) The C-H and C-X bonds that break must be anti.