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29. In the reduction of camphor experiment which of the following statements is correct? (a) Exo product is formed (b) Endo product is favored (c) Endo position is sterically hindered (d) Exo position is sterically hindered (e) All of the above 30. Why is para-nitrophenol partially soluble in water? (a) Because it gets protonated (b) Because the pka of a phenol is 9 (c) Because the pka of p-nitrophenol is 7.15 (d) Because alcohols are soluble in water (e) None of the above 31. What derivative of carboxylic acids is synthesized when the acid is treated with SOCl2 and then concentrated NH4OH? A) Amide C) Toluidide B) 3,5 dinitrobenzoate D) Anilide 32. The presence of circulating electron density around a proton will affect the magnetic field the proton experiences. If the electron density is high the proton is considered and if the electron density is relatively low, the proton is considered A) resonance, diamagnetism B) shielded, deshielded C) deshielded, shielded D) diamagnetism, resonance ede Shielded 33. For the following reaction sequence (it is not necessary to understand the chemistry). What significant change in the IR would you expect? a Na NH3 b.CH.CH A) A peak around 1710 cm-' would disappear B) A peak around 1710 cm would appear C) A peak around 3300 cm would disappear D) No change would be observed