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Q.

Which of the following is Sandmeyer reaction?

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a

2C6H5Cl⟶Cu2Cl2/HClC6H6+Cl2

b

C6H5N2Cl⟶Cu2Cl2/HClC6H5Cl+N2

c

C6H5NO2+6[H]⟶Sn/HClC6H5NH2+2H2O

d

C6H5OH⟶ Zn dust C6H6+ZnO

answer is B.

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Detailed Solution

Sandmeyer reaction is

 C6H5N2Cl⟶Cu2Cl2/HClC6H5Cl+N2

An arene diazonium salt combines with cupric chloride in hydrochloric acid in Sandmeyer's reaction to produce chlorobenzene.

So option B is the correct Answer.

 

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