In the chemical reactions, ![image](https://pub-7faa453bd1ec4bf0a04cc031c6f058de.r2.dev/images/3481d2bd-d15f-432c-b213-88c39fe6f747.png) the compounds - Chemistry MCQ AIEEE 2026 | ExamTest.live | ExamTest.live

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In the chemical reactions, the compounds 'A' and 'B' respectively are:

A $nitrobenzene and fluorobenzene$
B $phenol and benzene$
C $benzene diazonium chloride and fluorobenzene$
D $nitrobenzene and chlorobenzene$

Solution & Step-by-step Explanation

1. Aniline reacts with NaNO_{2} + HCl at 273 - 278 K to form Benzene diazonium chloride (A). C_{6} H_{5} NH_{2} NaNO_{2} HCl C_{6} H_{5} N_{2}^{+} Cl^{-} 2. Benzene diazonium chloride reacts with HBF_{4} followed by heating to form Fluorobenzene (B) (Schiemann reaction). C_{6} H_{5} N_{2}^{+} Cl^{-} HBF_{4} C_{6} H_{5} N_{2}^{+} BF_{4}^{-} Δ C_{6} H_{5} F + N_{2} + BF_{3}

Practice this question

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In the chemical reactions, the compounds 'A' and 'B' respectively are:

A

nitrobenzene and fluorobenzene

B

phenol and benzene

C

benzene diazonium chloride and fluorobenzene

D

nitrobenzene and chlorobenzene

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Organic Chemistry Nitrogen Compounds

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