Question

Reactants used for manufacturing nitric acid in ostwald process are.

• A. $N{H}_3$ and $O_2$
• B. $N{H}_3$ and $NO$
• C. $N{H}_3$ and $N{O}_2$
• D. $N{H}_3$ and $NO$ and $H_{2}O$

Answer 1

The correct option is A

$N{H}_3$ and $O_2$

In ostwald process the reactants used are the ammonia and oxygen of air.

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

Now $NO$ reacts with $O_2$ to give $N{O}_2$

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

Further, $N{O}_2$ reacts with $O_2$ and $H_{2}O$ to give $HN{O}_3$.