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Question

The replacement of diazonium group by fluorine is known as:

A
Gattermann reaction
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B
Sandmeyer reaction
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C
Balz-Schiemann reaction
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D
Etard reaction
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Solution

The correct option is C Balz-Schiemann reaction
The Balz- Schiemann reaction is a chemical reaction in which anilines are transformed to aryl fluorides via diazonium fluoroborates.

ArNH21HNO2−−−HBF4BF4ArN+N2ΔN2ArF3+BF3

1-anilines.
2-diazonium salt.
3-aryl fluoride.

Option C is correct.

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