(CH₃ C₆ H₄)₃ PO₄
Ca₁₀(PO₄)3F₆
(NH₄)₂HPO₄
NH₄H₂PO₄
✅ The correct answer is option A.
Fertilizer Technology MCQs
Ammonium nitrate is
Having about 40% N₂
Not hygroscopic
Not prone to explosive thermal decomposition
Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer
✅ The correct answer is option D.
Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration.
25-28
52-54
75-80
> 98
✅ The correct answer is option B.
Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.
10
25
50
80
✅ The correct answer is option B.
Sodium tri poly phosphate (STPP) is chemically represented as
Na₅P3O₁₀
Na₄P3O₈
Na₃P4O₆
Na₂PO₄
✅ The correct answer is option A.
Electric process as compared to wet process (for the manufacture of phosphoric acid)
Can use only high grade phosphate rock
Is used less frequently
Produces a valuable by-product called gypsum
Is weak acid process
✅ The correct answer is option B.
Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition?
Electrolysis of water
Cryogenic removal of H₂ from coke oven gas
Steam reforming of naphtha
Natural gas cracking
✅ The correct answer is option A.
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits?
Nitrogenous fertilisers
Phosphatic fertilisers
Potassic fertiliser
None of these
✅ The correct answer is option C.
A nitrogenous fertiliser contains 20% N₂. It could be
Ammonium nitrate
Calcium ammonium nitrate (CAN)
Urea
Ammonium chloride
✅ The correct answer is option B.
Nitrogenous fertiliser is required
During the early stage of growth to promote development of stem and leaves
For accelerating fruit formation in later stage of growth
To lessen the effect of excessive potash application
None of these
✅ The correct answer is option A.