8. (3 points) Which molecule below is the strongest acid? HO CH, Br 9 (4 points)

Question

8. (3 points) Which molecule below is the strongest acid? HO CH, Br 9 (4 points) Arrange the following butane formations in order of internal energy with the con highest energy conformation on the left of the series. CH3 H CH3 CH3 H3C CH CH A 2 3 1 4 B) 2 4 3 1 c) 2 3 4 1 D) 1 3 2 10. (3 points) Please circle the structure that represents (E-2-bromo-5-methylhex-2-ene. CHa Br Br 11. (4 points) Which structure best depicts the transition state for the reaction shown below? KCN acetone Br, H H3C CN HAC CN

Explanation / Answer

8. Strongest acid would be,

benzoic acid (last entry in the list)

9. Arrangement of conformations based on energy,

B) 2 > 4 > 3 > 1

10. The correct structure of (E)-2-bromo-5-methylhex-2-ene would be,

Structure 2 from the left.

11. The transition state for the said SN2 reaction would be best represented by,

Last structure on the right.

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