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(B) The reaction provided is a Friedel-Crafts acylation. However,the reactants are toluene $(CH_3-C_6H_5)$ and nitrobenzene $(NO_2-C_6H_5)$.Nitrobenze

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(B) The reaction provided is a Friedel-Crafts acylation. However,the reactants are toluene $(CH_3-C_6H_5)$ and nitrobenzene $(NO_2-C_6H_5)$.Nitrobenzene is a strongly deactivating group due to the $-NO_2$ group,which is electron-withdrawing. Friedel-Crafts reactions do not occur on benzene rings that are deactivated by strong electron-withdrawing groups like $-NO_2$.Therefore,the reaction will occur on the toluene ring,which is activated by the $-CH_3$ group.The $-CH_3$ group is ortho/para-directing. Thus,the acylation of toluene will yield a mixture of $o$-methylacetophenone and $p$-methylacetophenone.

The major product of the following reaction will be:

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