Question

What is obtained when nitrobenzene is treated sequentially with (i) $N{H}_{4}Cl/Zn$ dust and (ii) $H_{2}S{O}_4/N{a}_{2}C{r}_2{O}_7$?

• A. Meta-chloronitrobenzene
• B. Para-chloronitrobenzene
• C. Nitrosobenzene
• D. Benzene

Answer 1

Answer: (C)

Nitrosobenzene

$N{H}_{4}Cl$ is a reducing agent while the $N{a}_{2}C{r}_2{O}_7$ is oxidising agent.