Question

U. Soo-school-bet.cn E. 4-bromo-1-chloro-2-nitrobenzene 10 Identify the aromatic compounds AI and II B. II and 111 D. I. II and II E none of the above C. I and III 11. What is the value of a from Hucke's rule for the following aromatic compound? D. ES G3 12 The Birch reduction of benzene with sodium in NH.CH.Oh goes by a four-step mechanism The first step is the A. transfer of a proton from NH, to benzeme B. transfer of a proton from CH.OH to bemene Ctransfer of an electron from benzene to NHL. D. transfer of an electron from Na to benzeme E. transfer of a hydride ion, H. from NH, to benzeme What is the product of the reaction shown below? 13 CICH CH GO Euro AI B. 11 CHI D. IV E. Equal amounts of I and II F. Equal amounts of land IV Predict the major organic product in the following reaction 14 15. What is the electrophile in the Friedel-Crafts alkylation reaction below? ск A. AICI B.CI C benzeme D. (CHIC ECHI 16 Which of the following compounds cannot react as a diene in a Diels-Alder reaction! H.C HC CH A) D) HC HC Which one of the following is acta resonance form of the cyclohexadienyl cation intermediate in the bromination of benne! 17. A) E) All of the above are valid resonance structures 18. Show the structural formula of the major product of the following reaction of benzene (CH) with propyl chloride (4 pts) Cụt + CH4 44 18A AK 19 Show the structural formula of the product of the reaction and write its IUPAC name #pts) NA NI CHCOCICCIRCHE

Answer 1

(10) (11):) Questo Solve Given molecules. G For amidumatic compounds compound following Huckel alle. O molecule should be plomar. 20 all carbonis bespz in molecule (37 molecule must have an +2) Jelectowns N = - Gromatic nindex (1) 7 It has sp2 au atoms. N = 1, 2,3 - fon =) planar molecule =) 6 T elections. Thus it is aromatic CS Scanned with CamScanner

10 = molecule is plaman ) all carbons SP² > I heed btl electrons (hot followin+2) 7 electrons sule) so it is not aromatic (111) -) molecule planar 7) all carbons sp² > I has lote lectons. so it is aromatic llente; (1) and (111) aromatic Coorect option is (C) Imd I CS Scanned with CamScanner