What is the catalyst used for oxidation of (\ce{SO\_2}) to (... | Chemistry | SolveeIt

Question

What is the catalyst used for oxidation of $\ce{SO_2}$ to $\ce{SO_3}$ in lead chamber process for manufacture of sulphuric acid?

Nitric oxide

Nitrous oxide

Potassium iodide

Dilute HCl

Answer

Nitric oxide

Explanation

Solution

In lead chamber process, a mixture containing $SO _{2}$ , air NO is treated with steam $\left( H _{2} O \right)$ .

In this reaction, NO (nitric oxide) act as a catalyst.

$2 SO _{2}+\underset{\text { (From air) }}{ O _{2}}+2 H _{2} O +\underset{\text { Catalyst }}{[ NO ]} \to 2 H _{2} SO _{4}+\underset{\text { Catalyst }}{[ NO ]}$

Chemistry Question on p -Block Elements

Solution