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Identify the compounds in the following.
Question
$\text{C}_6\text{H}_5\text{NO}_2 \xrightarrow[\text{Heat}]{\text{Sn / HCl}} [\text{A}] \xrightarrow[0-5^\circ\text{C}]{\text{HNO}_2 + \text{HCl}} [\text{B}] \xrightarrow{\text{CuCN / HCN}} [\text{C}]$
Answer
Answer
AIA - aniline: C6H5NH2
B - benzenediazonium chloride: C6H5N2Cl
C - benzonitrile: C6H5CN
A = aniline ($\mathrm{C_6H_5NH_2}$)
B = benzenediazonium chloride ($\mathrm{C_6H_5N_2^+Cl^-}$)
C = benzonitrile ($\mathrm{C_6H_5CN}$)
From ISC 2026 Improvement Chemistry Paper 1, question 16(i).