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Which of the following is a by product of the reaction between fluoroborate diazonium salt and sodium nitrite in the presence of copper?

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in Chemistry – Class 12 by (188k points)
Which of the following is a by product of the reaction between fluoroborate diazonium salt and sodium nitrite in the presence of copper?

(a) HBF4

(b) NaBF4

(c) Na3N

(d) NaF

I have been asked this question during an interview.

The above asked question is from Diazonium Salts Chemical Reactions in division Amines of Chemistry – Class 12

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Right answer is (b) NaBF4

For explanation I would say: The diazonium salt dissociates in solution giving a free fluoroborate anion (BF4^–). This combines with the Na^+ ions in solution to form NaBF4.

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