Question

Select the correct option/s for ostwald process.

• A. Oxidation of ammonia $N{H}_3$ in catalytic chamber gives nitric oxide.
• B. Oxidation of nitric oxide $NO$ in oxidation chamber gives nitrogen dioxide.
• C. Absorption of nitric oxide $NO$ in oxidation chamber gives nitric acid $HN{O}_3$.
• D. Absorption of nitrogen dioxide in water gives nitric acid $HN{O}_3$.

Answer 1

Answer: (A), (B), (D)

The correct options are
A

Oxidation of ammonia $N{H}_3$ in catalytic chamber gives nitric oxide.

B

Oxidation of nitric oxide $NO$ in oxidation chamber gives nitrogen dioxide.

D

Absorption of nitrogen dioxide in water gives nitric acid $HN{O}_3$.

In ostwald process,

Step 1: Oxidation of ammonia in catalytic chamber at ${800}^{o}C$.

$4N{H}_3+5O_2\underset{Pt.guage}{\overset{{800}^{o}C}{\to }}4NO+6H_{2}O+Heat$

Step 2: Oxidation of nitric oxide at (50^oC\).

$2NO+O_2\stackrel{{50}^{o}C}{\to }2N{O}_2$

Step 3:Absorption of nitrogen dioxide in water.

$4N{O}_2+O_2+2H_{2}O->4HN{O}_3$