Question

For the industrial preparation of nitric acid from ammonia, when ammonia is heated with excess air in presence of a catalyst, at 900 ${}^{0}C$, NO is obtained. Which line of entry describes the undefined reagents, products and reaction conditions?

• A. catalyst at room temperaure $\left({25}^{\circ }C\right)$ and $N{O}_2$
• B. catalyst at room temperature $\left({25}^{\circ }C\right)$ and $N_{2}O$
• C. catalyst hight pressure and $N{O}_2$
• D. catalyst hight pressure and $N_2{O}_3$

Answer 1

Answer: (A)

catalyst at room temperaure $\left({25}^{\circ }C\right)$ and $N{O}_2$

For the industrial preparation of nitric acid from ammonia, when ammonia is heated with excess air in presence of a catalyst, at 900 ${}^{0}C$, NO is obtained. Nitric oxide reacts with air at room temperature to form nitrogen dioxide.

$2NO+O_2\stackrel{catalyst,{25}^{o}C}{⟶}2N{O}_2$

Hence, option A correctly describes the undefined reagents products and reaction conditions.