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प्रश्न
In the following reaction the reagent A is,
\[\ce{Ar - N^+_2 X^- ->[A] Ar - N^+_2 BF^-_4 ->[\Delta] Ar - F + BF3 + N2 ^}\]
विकल्प
boron trifluoride
fluoroboric acid
hydrofluoric acid
boric acid
MCQ
उत्तर
fluoroboric acid
Explanation:
\[\ce{ArN^+_2X^- ->[HBF4] ArN^+_2BF^-_4 ->[\Delta] ArF + BF3 + N2 ^}\]
A = HBF4 - Fluoroboric acid
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Reactions of Arene Diazonium Salts
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