Which part of the following intermediate of aromatic electrophilic substitution

Question

Which part of the following intermediate of aromatic electrophilic substitution originated from the electrophilic? Nitro-group Methyl group Amino-group Carbonyl group Amide group Which part of the following intermediate of aromatic electrophilic substitution stabilizes the positive charge the most? Nitro-group Methyl group Amino-group Carbonyl group Amide group What happen to the following intermediate of aromatic electrophilic substitution on the next step of the reaction? It turns to the product of addition, because it loses aromaticity It turns to the product of addition, because it gains aromaticity It turns to the product of substitution, because it loses aromaticity It turns to the product of substitution, because it gains aromaticity It turns to the product of substitution, because it loses aromaticity How would you classify acid-catalyzed dehydration of alcohols? Addition elimination substitution bromination combustion

Explanation / Answer

27) option B is correct

28) option B is correct (methyl group is electron donating group and nitro gorup is electorn withdrawing group. Electron donating group stabilises the positive charge.)

29) option D is correct. It is electrophilic aromatic substitution reaction not addition reaction.

30) option B is correct (protonation of alcohol using acid produces a good leaving group, H2O+. Then deprotonation followed by removal of leaving group produces the product. It is called elimiantion reaction.)

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