Manufacturing Sulphuric Acid

The video explains the contact process for producing sulfuric acid, which involves three stages: converting sulfur to sulfur dioxide, then to sulfur trioxide, and finally to sulfuric acid. The process uses a vanadium oxide catalyst and operates at high temperatures. Environmental measures include using acidic scrubbers to prevent acid rain.

What is the product formed when sulfur is combusted in oxygen during the first stage of the contact process?

• Sulfur monoxide

• Sulfur dioxide

• Sulfuric acid

• Sulfur trioxide

Which catalyst is used to speed up the conversion of sulfur dioxide to sulfur trioxide?

• Copper sulfate

• Platinum

• Vanadium oxide

• Iron oxide

At what temperature does the reaction to form sulfur trioxide typically occur?

• 350 degrees centigrade

• 400 degrees centigrade

• 450 degrees centigrade

• 500 degrees centigrade

What is the name of the liquid formed when sulfur trioxide is converted into concentrated sulfuric acid?

• Sulfuric mist

• Oleum

• Sulfuric gel

• Sulfuric solution

What is used to neutralize acidic fumes and prevent local acid rain during the final stage of the contact process?

• Carbon dioxide

• Air filters

• Acidic scrubbers

• Water sprays