3672. Phosphatic fertilisers
Are useful during early stage of the plant growth
Accelerate fruit formation in later stages of growth
Lessen the effect of excessive nitrogen application
None of these
✅ The correct answer is option B.
3674. Raw materials for urea production are
CO₂ and N₂
CO₂, H₂ and N₂
NH₃ and CO
HNO₃ and CaCO₃
✅ The correct answer is option B.
3684. CO₂ present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in
Mono-ethanolamine (MEA)
Slaked lime
Ammoniacal liquor
Methyl-Ethyl Ketone (MEK)
✅ The correct answer is option A.
3689. Commercial fertilisers are available mostly in the form of
Powder
Grannules
Lumps
Flakes
✅ The correct answer is option B.
3699. 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.
3705. 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.
3670. Flushing liquor used for cooling coke oven gas constitutes of
Ammoniacal liquor
K₂CO₃ solution
Dilute H₂SO₄
Dilute HCl
✅ The correct answer is option A.
3675. Temperature and pressure in ammonia converter is
200 atm, 1000°C
450 atm, 200°C
450 atm, 550°C
450 atm, 1000°C
✅ The correct answer is option C.