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(C) The reaction of $p$-hydroxybenzenesulfonic acid with aqueous $Br_2$ ($3.0$ equivalents) involves electrophilic aromatic substitution. First,the hi

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$R$

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(C) The reaction of $p$-hydroxybenzenesulfonic acid with aqueous $Br_2$ ($3.0$ equivalents) involves electrophilic aromatic substitution. First,the highly activating $-OH$ group directs bromination to the ortho positions relative to itself. Since the para position is already occupied by the $-SO_3H$ group,the two ortho positions are brominated. Subsequently,the $-SO_3H$ group is a good leaving group in the presence of excess bromine and water,leading to its displacement by a third bromine atom. This results in the formation of $2,4,6$-tribromophenol,which corresponds to structure $R$.

The major product$(s)$ of the following reaction is (are):

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Predict the product of the following reaction sequence:
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Product $(B)$ in the above reaction is

What is the characteristic chemical reaction of benzene?

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