Fertiliser Technology

41.Catalyst used in Haber's process for ammonia production is

1. Reduced iron oxide
2. Nickel
3. Vanadium pentoxide
4. Silica gel

View answer

42.Catalyst used in steam reforming of naphtha is

1. Nickel
2. Platinum
3. Silica gel
4. Rhodium

View answer

43.Catalyst used in the manufacture of NH₃ by Haber's process is finely divided

1. Nickel
2. Iron
3. Vanadium pentoxide
4. Alumina

View answer

44.Catalyst used in the oxidation of ammonia is

1. Platinum-beryllium
2. Platinum-rhodium
3. Cobalt-molybdenum
4. Platinum-molybdenum

View answer

45.Catalytic ammonia synthesis reaction as in Haber's process is

1. Endothermic
2. Exothermic
3. Irreversible
4. None of these

View answer

46.Chemical formula of meta-phosphoric acid is

1. H₃PO₄
2. H₄P₂O7
3. HPO₃
4. Same as that of Pyrophosphoric acid

View answer

47.CO₂ present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in

1. Mono-ethanolamine (MEA)
2. Slaked lime
3. Ammoniacal liquor
4. Methyl-Ethyl Ketone (MEK)

View answer

48.Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talcher (Orissa)

1. Use coal for heating purpose
2. Gasify coal to get hydrogen from coal gas
3. Use coal as filler in fertiliser
4. Use coal as conditioner in fertiliser

View answer

49.Color of nitric acid is light yellow due to the presence of

1. NO
2. NO₂
3. N₄H₅
4. NH₃

View answer

50.Commercial fertilisers are available mostly in the form of

1. Powder
2. Granules
3. Lumps
4. Flakes

View answer