Question

why is the making of sulphuric acid process preferred to lead chamber process ?​

Answer 1

The Industrial manufacture of sulfuric acid is done mainly by two processes

1. The Lead Chamber process

2. The Contact process

2NO+O

2⇋2NO

2

Above reaction is rate controlling step in the chamber process. Nitrous fumes produced catalyze the synthesis of sulfuric acid when they come in contact with sulfur dioxide and water. So, NO acts as a catalyst in the given exothermic reaction.