Chemical Technology GATE-1990
Q 1: For SO2/SO3 service at 400 ˚C the recommended material of construction is,
Q 2: For NH3 reactors the material of construction is,
Q 3: Catalyst for platforming of petroleum feedstock is,
Q 4: Why SO2 + 1/2O2 → SO3 is a low-pressure process; N2 + 3H2 ⇌ 2NH3 is a high-pressure process?
Q 5: Why dehydrate process is preferred to the hemihydrates process for the manufacture of commercial-grade orthophosphoric acid from its ore and sulfuric acid?
Q 6: How the caustic soda of 50 % concentration can be prepared by the Mercury Cell Technology?