Question

on T. Maitiple choiee. Select the best anaver. (0.5 points each) i. Which statement below is true the aromatic substitution involving the bromina of benzene? znBry acts as the Lewis acid B) Feßr, acts as the Lewis base c) Br, acts as nugaed aromatic ring D) n-electrons of benzene act as the electrophile E) FeBr, acta as the Lewis acid. a what is rue about the rate and the najor predust of nitration of the methoxybenzene? A) Proceeds more rapidly than the nitration of benzene and yields meta product. Proceeds more slowly than the nitration of benzene and yields meta product Proceeds more slowly than the nitration of benzene and yields ortho,para products. D Proceeds more rapidly than the nitration of benzene and yields ortho,para product a E) Proceeda at the same rate as the nitration of benzene and yields neta product as major 3. What is true with respect to aromatic, anti-aromatic, and non-aromatic? A) 1:anti-aromatic: 2:non-aromatici 3:aromatic: 4:antiaromatic: 5:aromatic B) 1ianti-aromatic: 2:non-aromatic: 3:aromatic: 4:aromatic: 5inon-aronatic C) 1:aromatic: 2:non-aromatie: 3:anti-aromatic: 4:aromatic: 5:anti-aromatic D) 1ianti-aromatic: 2inon-aromatic: 3:anti-aromatic: 4:aromatic: 5:anti-aromatic E) all are aromatic 4. Predic of the following reaction the A) 1,2-dibronobe nzene B) 1, 3-dibromobenzene C) bromobenzene D) phenol E) no reaction . Which pair of substituents are not activating groups? B) -OCH, and -NH, C) CH, and -OR D) -oCH,CH, and -CH CH, E) each pair is A) I and -so,H an activating group Name Page I 1

Answer 1