Q4 / 160 · AP EAMCET 2012 · Chemistry

Identify $A$ and $B$ in the following reactions Figure

  • A
    Figure
  • B
    Figure
  • Correct answer
    C
    Figure
  • D
    Figure

Solution

$\mathrm{NO}_2$ being meta directing gives m-chloronitrobenzene, when treated with $\mathrm{Cl}_2, \mathrm{Fe}$. Figure
On reduction with $\mathrm{LiAlH}_4$, nitrobenzene gives azobenzene. < smiles>O=[N+]([O-])c1ccccc1 < /smiles> $\underset{[\mathrm{H}]}{\stackrel{\mathrm{LiAlH}_4}{\longrightarrow}}$ < smiles>c1ccc(N=Nc2ccccc2)cc1 < /smiles> azobenzene ' $B$ '

Hence, the correct answer is option: 'C'.

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