1.What major product(s)would you expect from the following reaction? Br D) ng both A and C Page 1
Page 1 1. What major product(s) would you expect from the following reaction? CH3 ? Br2 FeBr3 A) CH3 Br B) Br CH3 C) CH3 Br D) CH2Br E) both A and C Ans: E
2.What major product(s)would you expect from the following reaction? % C) D No. ns uh A and C Page2
Page 2 2. What major product(s) would you expect from the following reaction? NO2 ? HNO3 H2SO4 A) NO2 NO2 B) O2N NO2 C) NO2 O2N D) NO2 SO3H E) both A and C Ans: B
3.What major product would you expect from the following reaction? OH e Page3
Page 3 3. What major product would you expect from the following reaction? OH ? HNO3 H2SO4 A) OH NO2 B) OH O2N C) OH NO2 D) OH NO2 E) OH NO2 Ans: A
What major product(s)would you expect from the following reaction? net-a AlCla CH 、CH HC-Co D)both A and C E)no reaction occurs Ans:E Page 4
Page 4 4. What major product(s) would you expect from the following reaction? H3C C O Cl NO2 ? AlCl3 A) NO2 C O CH3 B) NO2 O CH3 C C) NO2 H3C O C D) both A and C E) no reaction occurs Ans: E
H.C NO 1.HNO3.H2SOa 2.Br2.FeBr3 3.CHCOCL,AICIs C) 1.CHgCOCL,AICI3 2.HN0,H2S04 3.Br2,FeBr D)both A and B E)both Band C Ans:C 6.Rank the following aromatics in order of decreasing reactivity toward electrophilic aromatic substitution (most reactive least reactive). A B C D A>C>D>B D-C>A-D Page5
Page 5 5. Which of the following sequences of reactants would you expect to convert benzene to the substituted aromatic shown below? H C NO2 3C O Br ? A) 1. HNO3, H2SO4 2. Br2, FeBr3 3. CH3COCl, AlCl3 B) 1. Br2, FeBr3 2. CH3COCl, AlCl3 3. HNO3, H2SO4 C) 1. CH3COCl, AlCl3 2. HNO3, H2SO4 3. Br2, FeBr3 D) both A and B E) both B and C Ans: C 6. Rank the following aromatics in order of decreasing reactivity toward electrophilic aromatic substitution (most reactive > least reactive). CH3 NO2 Br OH A B C D A) A > C > D > B D) D > A > C > B B) D > C > A > B E) C > A > D > B C) B > C > A > D Ans: D