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What is the most suitable temperature for the formation of a diazonium salt from aniline?

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in Chemistry – Class 12 by (188k points)
What is the most suitable temperature for the formation of a diazonium salt from aniline?

(a) 0°C

(b) 18°C

(c) 37°C

(d) 60°C

I have been asked this question in an interview for internship.

Enquiry is from Preparation of Haloarenes in division Haloalkanes and Haloarenes of Chemistry – Class 12

1 Answer

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The correct choice is (a) 0°C

The explanation: Diazonium salts are formed by treating ice-cold solution of aromatic amines in aqueous mineral acid with sodium nitrite at low temperatures of 273-278K.

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