Which of the following reactions results in a | vedclass

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(B) Azo coupling is an electrophilic aromatic substitution reaction where a diazonium salt reacts with an electron-rich aromatic compound (like phenol

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$C_6H_5N_2Cl + C_6H_5OH \xrightarrow{OH^-}$

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(B) Azo coupling is an electrophilic aromatic substitution reaction where a diazonium salt reacts with an electron-rich aromatic compound (like phenol or aniline) to form an azo compound $(R-N=N-R')$.In option $B$,$C_6H_5N_2Cl$ (benzenediazonium chloride) reacts with $C_6H_5OH$ (phenol) in a basic medium $(OH^-)$ to produce $p$-hydroxyazobenzene,which is a classic example of an azo coupling reaction.Option $A$ represents the diazotization of aniline.Option $C$ represents the Balz-Schiemann reaction.Option $D$ represents the Gattermann reaction.

Which of the following reactions results in azo coupling?

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