Please provide a detailed explanation for each correct multiple choice answer circled . Rankings should be justified
1. which compound cannot be synthesized by a williamson ether synthesis? below is matching ofte three NMR spectra to isomers of bromo- e on the proton NMR spectra shown on the left? Only couplings are shown. (A) ortho-dibroaobenzene para. 1.3,5 tribromobenzene 3. Which compound is consistent with the molecular ion region of the mass spectrum shown above right? 4. Which compound will react most rapidly with sodium borohydride? D>c 6 A 5. Which substance is an ester? which product() form when trans 2-busene isallowed to react with catalytic osmium tetroxide in the presence oft-BuooH and base? O QR.3R) and (2s 3s) (B) (2R so-butane-2.-diol (2R,3R) (D) ethanal 7. Which compound will not add twice to methyl benzoate? (A) LiALH. MgBr 's, which compound will form the most stable bydratet c D >B>A 9. Which compound is most stable (least reactive) to mild acid hydrolysis? (B) 10. Which group will stabilize highly reactive cyclobutadiene by complexation to form an 18 electron complex? Felco) (B) Mn(CO) (A) Cr(Cos 11. Which reagent is a synthetic equivalent for the carboxylate anion [-C(oyoH? so (C) BrMg o K-CIN (A) OH
