MHT CET 2025 Chemistry question

What type of arenes are obtained when arene diazonium chloride is treated with fluoroboric acid and then heated further?

(A)Ar-
(B)Ar-FCorrect
(C)Ar-Cl
(D)Ar-H

Answer: (B)

Solution

Arene diazonium chloride reacts with fluoroboric acid () to give the arene diazonium tetrafluoroborate, , which precipitates. On heating it decomposes to give the aryl fluoride: N_2^+BF_4^-$

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-101764