6. Which of the following SN2 reactions is the fastest? A.) CH3CH2CH2CH2BR + OH- B.) CH3CH2CH2CH2B...

Transcribed Image Text:

6. Which of the following SN2 reactions is the fastest? A.) CH3CH2CH2CH2BR + OH- B.) CH3CH2CH2CH2B + H20 → CH3CH2CH2CH2OH + HBr C.) CH3CH2CHBRCH3 + OH- → D.) CH3CH2CHBRCH3 + H20 → CH3CH2CHOHCH3 + HBr CH3CH2CH2CH2OH + Br CH3CH2CHOHCH3 + Br 7. How many beta hydrogens does the following compound have? A.) 0 В.) 1 C.) 2 D.) 3 E.) 4 Br CH3 8. Why does the alkyl halide shown below not undergo an E2 reaction with sodium ethoxide? A.) Br is too poor a leaving group. B.) The substrate is too hindered. C.) Too much angle strain would be present in the alkene product. D.) Sodium ethoxide is a poor base to use in E2 reactions. E.) The C-H and C-Br bonds which need to break cannot both be in axial positions. 9. What two reactions can occur when 2-iodohexane reacts with sodium ethoxide? A.) SN2 and SN1 B.) E1 and E2 C.) SN2 and E2 D.) E1 and SN1 E.) E2 and SN1 6. Which of the following SN2 reactions is the fastest? A.) CH3CH2CH2CH2BR + OH- B.) CH3CH2CH2CH2B + H20 → CH3CH2CH2CH2OH + HBr C.) CH3CH2CHBRCH3 + OH- → D.) CH3CH2CHBRCH3 + H20 → CH3CH2CHOHCH3 + HBr CH3CH2CH2CH2OH + Br CH3CH2CHOHCH3 + Br 7. How many beta hydrogens does the following compound have? A.) 0 В.) 1 C.) 2 D.) 3 E.) 4 Br CH3 8. Why does the alkyl halide shown below not undergo an E2 reaction with sodium ethoxide? A.) Br is too poor a leaving group. B.) The substrate is too hindered. C.) Too much angle strain would be present in the alkene product. D.) Sodium ethoxide is a poor base to use in E2 reactions. E.) The C-H and C-Br bonds which need to break cannot both be in axial positions. 9. What two reactions can occur when 2-iodohexane reacts with sodium ethoxide? A.) SN2 and SN1 B.) E1 and E2 C.) SN2 and E2 D.) E1 and SN1 E.) E2 and SN1

Answer rating: 100% (QA)

6 7 8 e is correct Reason E2 reaction is trans... View the full answer