10.Which of the following five-carbon alcohols would you expect to be the most soluble in ater? A CH3-CH2-CH2-CH2-CH2OH OH CH3-CH2-CH2-CH-CH3 c) OH CHa-CH2-CH-CH2-CH3 D) CH3-CH2-CH-CH2OH CH3 E) CH3- -CH2OH CHa Ans:E 11.What reagent(s)would accomplish the following transformation? CD2OH A) Pyridinium chlorochromate B)LiAIDa then H:O' Ans:A 12.Which statement about the preparation of Grignard reagents is otrue? RX+Mg→RMgX Methyl.primary,secondary,tertiary and aryl halides may be used D)Rearrangement may accompany Grignard formation. E)The halogen may be chloride,bromide,or iodide. Ans:D Page6Page 6 10. Which of the following five-carbon alcohols would you expect to be the most soluble in water? A) CH3 CH2 CH2 CH2 CH2OH B) CH3 CH2 CH2 CH CH3 OH C) CH3 CH2 CH CH2 CH3 OH D) CH3 CH2 CH CH2OH CH3 E) CH3 CH3 C CH2OH CH3 Ans: E 11. What reagent(s) would accomplish the following transformation? CD2OH C O ? D A) Pyridinium chlorochromate D) Potassium dichromate B) LiAlD4 then H3O+ E) H2SO4 C) H2CrO4 Ans: A 12. Which statement about the preparation of Grignard reagents is not true? RX + Mg RMgX A) The reaction must be done in an ether solvent. B) The reagent should be protected from air. C) Methyl, primary, secondary, tertiary and aryl halides may be used. D) Rearrangement may accompany Grignard formation. E) The halogen may be chloride, bromide, or iodide. Ans: D