Discussion Forum



1)

What  is the catalyst  used for oxidation of SO2 to SO3 in lead chamber process for manufacture of sulphric acid?


A) Nitric oxide

B) Nitrous oxide

C) potassium iodide

D) Dilute HCl

Answer:

Option A

Explanation:

In the lead chamber process, a mixture containing  SO2, air NO is treated with steam(H2O ).

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

In this reaction, NO (niric oxide) acts as a catalyst.

$2SO_{2}+O_{2}+2H_{2}O+[NO]\rightarrow 2H_{2}SO_{4}+[NO]$

           (from air)             (catalyst)                 catalyst