Nitrogen
Phosphorous
Potassium
Carbon
✅ The correct answer is option A.
Fertilizer Technology MCQs
Reaction of calcium fluorapatite with sulphuric acid produces
Ortho-phosphoric acid
Simple superphosphate
Triple superphosphate
Red phosphorous
✅ The correct answer is option B.
Rock phosphate used for the production of phosphatic fertiliser is mined at
Amjhor (Jharkhand)
Talchar (Orissa)
Bailladella (M.P.)
Kiriburu (Bihar)
✅ The correct answer is option A.
Which fertiliser is made (using coke oven gas) in by products plant of an integrated steel plant?
Urea
CAN
Ammonium sulphate
Superphosphate
✅ The correct answer is option C.
__________ catalyst is used in the production of urea from CO₂ and NH₃.
Vanadium pentoxide
No
Alumina
Nickel
✅ The correct answer is option B.
Dehydration of ammonium carbamate produces
Urea
Biuret
Ammonia water
None of these
✅ The correct answer is option A.
The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.
60
30
95
100
✅ The correct answer is option A.
Multistage operation (as in the case of catalytic oxidation of SO₂) is not carried out for NH₃ synthesis, because of
Comparatively higher pressure drop
High cost of the high pressure vessel used for the reactor
Higher pumping cost
Chances of entrainment and disturbance of catalyst bed
✅ The correct answer is option B.
Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.
Nutrient supply
Texture
Water holding capacity
All of the above
✅ The correct answer is option D.
Fertiliser value of a nitrogeneous fertiliser is expressed in terms of its __________ content.
N₂
KNO₃
NO₂
NHO₃
✅ The correct answer is option A.