Question

Preparation of Fluorobenzene from aniline by using diazotization reaction followed by Fluoroboric acid heating reaction is known as ___? *
• hunsdiecker reaction
• wurtz reaction
• Direct halogenation
• Bolz-Schiemann reaction​

Answer 1

Answer:

Benzene undergoes diazotization to home benzenediazonium salt.

when fluoroboric acid is added to the solution of diazonium salt of precipitate of diazonium fluoroborate is obtained, which is filtered filtered and dried. dry diazonium fluoroborate on heating decomposes to give fluorobenzene. This reaction is called balz Schiemann reaction.

C

6

H

5

−N

2

+

X

−

+ HBF

4

→ C

6

H

5

−N

2

+

BF

4

−

→ C

6

H

5

−F + BF

3

+ N

2

↑

Answer 2

BOLZ- SCHIEMANN RECTION

IS THE CORRECT ANSWER

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