- 1 (5.83 KiB) Viewed 61 times
- 2 (24.45 KiB) Viewed 61 times
- 3 (25.18 KiB) Viewed 61 times
сн. CH, b) сн. CH, CH CH, H CH, c) d) 10. Which of the following groups has the highest priority according to the Cabo Ingold-Prelog sequence rules? a) CH3 b) CH2CI c) CH2OH d) CHO 11. Which of the following groups has the highest priority according to the Cabe- Ingold-Prelog sequence rules? a) CCH b) CH-CH2 c) CH(OHCH3 d) CH2CH2OH 12. Which is the correct assignment of chirality at C2 and of the following molecule?
OH TH HOH a) 25.45 b) 2R4R c) 25,4 d) 2.45 13. Which is the correct assignment of chirality at CI and 3 of the following molecule? CHO нон нон CH,OH a) 25,35 b) 2R 3R c) 25.3R d) 2R 35 14. Which of the following statements regarding the 13 mechanism is wrong? a) SN2 reactions are bimolecular b) SN2 reactions are usually second order c) The SN mechanism occurs in one step. d) SN reactions usually occur in two steps 15. Which of the following statements regarding the mechanisms a) SNI reactions are unimolecular b) SNI reactions are first order. c) The Si mechanism involves a single step. 16