Question

Identify the product C in the series.
C$_6$H$_5$NO$_2 \xrightarrow{\text{Fe/HCl}} A \xrightarrow{\text{NaNO}_2\text{+HCl, } 273\text{ K}} B \xrightarrow{\text{H}_2\text{O, } 283\text{ K}} C$

• A. C$_6$H$_5$OH
• B. C$_6$H$_5$CH$_2$OH
• C. C$_6$H$_5$CHO
• D. C$_6$H$_5$NH$_2$

Hint:

Key Exam Tip:
Remember the key transformations:
• Nitro group reduction to amine: e.g., R-NO$_2 \xrightarrow{\text{Fe/HCl or Sn/HCl}} R-NH_2$.
• Diazotization of primary aromatic amines: R-NH$_2 \xrightarrow{\text{NaNO}_2\text{+HCl, low temp}} R-N_2^+Cl^-$.
• Hydrolysis of diazonium salts: R-N$_2^+X^- \xrightarrow{\text{H}_2\text{O, heat}} R-OH + N_2 + HX$.

Answer 1

The Correct Option is A