Which of the following reagents will be useful to distinguish between ?

Which of the following reagents will be useful to distinguish between
?
  1. Dilute $\mathrm{HCl}$
  2. $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{SO}_{2}$ and $\mathrm{OH} / \mathrm{H}_{2} \mathrm{O}$
  3. HONO then $\beta$ -naphthol
  4. $\mathrm{AgNO}_{3}$ in $\mathrm{H}_{2} \mathrm{O}$

Solution

The first compound will give azo dye

Asked in: JEE-TOPICTESTS-CHEMISTRY

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