Ammonium sulphate
Calcium ammonium nitrate
Urea
Liquid ammonia
✅ The correct answer is option D.
Fertilizer Technology MCQs
Low grade phosphate rock can be used in electrical furnace, because
Of the better CaO/SiO₂ balance for slag formation
CaO content is less
It is cheap
It produces low cost product
✅ The correct answer is option A.
Catalyst used in ammonia synthesis uses __________ as a promoter.
Pt
K₂O
Al2O₃
Ni
✅ The correct answer is option B.
pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant.
4-May
7-Aug
9-Oct
Dec-13
✅ The correct answer is option B.
Nitric acid is produced on commercial scale in a fertiliser plant by
Oxidation of ammonia
CaNO₃ + H₂SO₄ reaction
Passing air through high voltage electric arc
None of these
✅ The correct answer is option A.
Plant tranquillisers
Hold back stem growth and halt plants at a desired height
Cause early maturation of plants
Accelerate ripening of food and grain
Produce seedless fruit
✅ The correct answer is option A.
Potassic fertilisers
Are useful during early stage of the plant growth
Stimulate early growth and accelerate seeding
Help in development of starches of potatoes and grain
None of these
✅ The correct answer is option C.
Optimum reaction temperature in steam reforming of naphtha is __________ °C.
700 – 1000
300 – 450
1500-1700
100-200
✅ The correct answer is option A.
A mixture of phosphate rock __________ is heated in an electric furnace to produce phosphorous.
Salt & coke
Sand & coke
And coke
And sand
✅ The correct answer is option B.
Phosphatic fertiliser is graded based on its __________ content.
P₂O₃
PCl5
P₂O₅
H₃PO₄
✅ The correct answer is option C.