Q

The Contact Process is used for the manufacturing of which of the following chemicals?

RRB NTPC (UG) CBT-1, 07-May-25 S-2 2025
✓ Answer: D Sulphuric acid
The Contact Process is used for the manufacturing of sulphuric acid. Burning sulphur to form sulphur dioxide (SO2): S + O2 → SO2. Oxidation of SO2 to SO3 using a vanadium (V) oxide catalyst: 2SO2 + O2 → 2SO3. SO3 is absorbed in concentrated H2SO4 to form oleum, which is then diluted to make sulphuric acid.
← Previous Question Next Question →

📚 Related Questions — Acid, Base and Salts

1 The pH of acid rain is: 2 As the pH value increases from 7 to 14, it represents: 3 Which of the following is a weak base? 4 When chlorination of dry slaked lime takes place, ________ will form as… 5 Lime water turns milky when carbon dioxide is passed through it. It… 6 ________ reacts with acids and bases.