Question

The catalyst used in the lead chamber process of sulfuric acid manufacture is:
A. Platinum
B. Oxide of nitrogen
C. Nickel
D. Vanadium compounds

Answer 1

Hint: Lead chamber process is an industrial technique to give sulfuric acid in larger amounts. Let us know that in \[1746\], John Roebuck started preparing sulfuric acid in chambers that are lined in lead. These chambers are not much costlier and stronger. This permitted the industrialization of production of sulfuric acid.

Complete step by step answer:
We have to know that chamber process, likewise called Lead-chamber Process, strategy for creating sulfuric acid by oxidizing sulfur dioxide with damp air, utilizing vaporous nitrogen oxides as catalysts, the reaction occurring principally in a progression of huge, boxlike chambers of sheet lead. The lead-chamber method has been generally displaced in current mechanical production by the contact process.
We can now explain the Lead-chamber process as,
Sulfur dioxide is presented with steam and nitrogen dioxide into huge chambers fixed with sheet lead where the gases are showered down with water and chamber acid (\[62-70\% \]sulfuric corrosive). The sulfur dioxide and nitrogen dioxide disintegrate, and over a time of roughly $30$ minutes sulfuric acid is oxidized by sulfur dioxide. The presence of nitrogen dioxide is fundamental for the reaction to continue at a sensible rate. The interaction is exceptionally exothermic, and a significant thought of the plan of the chambers was to give an approach to scatter the warmth framed in the reactions.
In the manufacture of sulfuric acid by Lead chamber process, the catalyst is used as an oxide of nitrogen.

Hence, ‘Option (B)’ is correct.

Note: The fundamental principle in lead chamber process is that moist sulfur dioxide while oxide of nitrogen plays the role of active catalyst. In the presence of oxide of nitrogen, sulfur dioxide is oxidized to sulfur trioxide along with oxygen found in air. We have to know that in the lead chamber process, the type of catalyst is a homogeneous catalyst.