In the following reaction,the product (A) is: | vedclass

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(D) The reaction between benzenediazonium chloride and aniline in a weakly acidic medium $(pH \approx 4-5)$ is an electrophilic aromatic substitution

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$C_6H_5-N=N-(C_6H_4)-NH_2$ (para)

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(D) The reaction between benzenediazonium chloride and aniline in a weakly acidic medium $(pH \approx 4-5)$ is an electrophilic aromatic substitution reaction known as coupling reaction. In this reaction,the diazonium cation acts as an electrophile and attacks the electron-rich ring of aniline. Since the $-NH_2$ group is a strong ortho/para directing group,and due to steric hindrance at the ortho position,the electrophile preferentially attacks the para position of aniline to form $p$-aminoazobenzene,which is a yellow dye.

In the following reaction,the product $(A)$ is:

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