Question

When benzene diazonium fluoroborate is heated with aqueous sodium nitrite solution in the presence of copper, the product formed is:

• A. fluorobenzene
• B. benzene
• C. aniline
• D. nitrobenzene
• E. phenol

Hint:

Diazonium salts, when treated with sodium nitrite and copper, undergo a nitration reaction, leading to the formation of nitro compounds.

Answer 1

The Correct Option is D

Step 1: When benzene diazonium fluoroborate is treated with sodium nitrite and copper, a substitution reaction takes place. 
Step 2: This reaction leads to the formation of nitrobenzene by the electrophilic aromatic substitution of the diazonium group with a nitro group.