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can you please help for these three questions please? thank you!
18. Which will be the major product of the following E2 reaction? NaOH Br CH3 H3C H a) b) c) Нас d) H3C CH3 H3 H3C 3
20. Which would not be a good method to prepare compound A? O A 1. BH3 OH РСС b) 2. H202, OH 1, H+, H2O 2. РСС H2SO4, H20 O
28. How many different protons (including the H of the OH) are present in each of the following compounds? A H OH (a) A 6, B
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