JEE Main 2022 · 30 Jun · Shift 1 · Chemistry Q77

ChemistrySingle correct+4 / -1Question 77 of 90

$\mathrm{A+CH_3CH_2OH\longrightarrow C_6H_6\xrightarrow[(ii)\ NaOH\ (iii)\ HCl]{(i)\ H_2SO_4\ (oleum),\ \Delta}B}$

Consider the above reaction sequence. Identify the component A and component B :

\mathrm{A=C_6H_5NH_2}

, B = chlorobenzene

\mathrm{A=C_6H_5N_2^+Cl^-}

, B = phenol

A = chlorobenzene,

\mathrm{B=C_6H_5NH_2}

A = phenol,

\mathrm{B=C_6H_5N_2^+Cl^-}

Answer and worked solution

Official answer: B

A. Benzenediazonium chloride is reduced by ethanol to benzene. B. Sulfonation, NaOH fusion and acid give phenol.

(B)

Topics:Diazonium salts Phenols

JEE Main 2022 · 30 Jun · Shift 1, Chemistry question 77