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12. The only reaction could occurred нс ២) HUN - + NaHCO HA C) + NaHOOL d) -CH2NH2 + HCI 13- Among the following statements on the nitration of aromatic compounds, the false one is: a- The rate of benzene is almost the same as that of methyl benzoate b- The rate of nitration of toluene is greater than that of benzene. c- The rate of nitration of benzene is greater than that of aniline. d- Nitration is an electrophilic substitution reaction 14- Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4. In the nitrating mixture HNO3 acts as a: (a) Base (b) Acid (c) Reducing agent (d) Catalyst 15- The Names of the glass wares from 1-4 are: 1 a) Glass funnel, beaker, cylinder, vacuum filtration. b) Separatory funnel, measuring cylinder, vacuum filtration. c) Extraction funnel, beaker, cylinder, suction filtration. d) Glass funnel, Separatory funnel, stand, Erlenmeyer flask 16- Which of the following is the intermediate in the mechanism of the acid catalyzed formation of an H2SO4 CH- CH3-C- OH CH3CH2OH ester? (a) O-CH2CH3 (c) (a) -- e CH3-C-0-H CH3- OH O-CH2CH3 OH 1 CH3-C-OH CH3-ce H