3825. Tricresyl phosphate is chemically represented as
(CH₃ C₆ H₄)₃ PO₄
Ca₁₀(PO₄)3F₆
(NH₄)₂HPO₄
NH₄H₂PO₄
✅ The correct answer is option A.
3829. 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.
3834. Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.
10
25
50
80
✅ The correct answer is option B.
3836. 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.
3840. 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.
3844. Fauser Monte Catini converter is used for
Ammonia synthesis (e.g. at FCI Sindri)
Methanation of CO and CO₂
Shift conversion (i.e. CO to CO₂)
None of these
✅ The correct answer is option A.
3848. Triple superphosphate is made by reacting phosphate rock with __________ acid.
Phosphoric
Nitric
Sulphuric
Hydrochloric
✅ The correct answer is option A.
3853. Reaction of nitric acid and sulphuric acid with phosphate rock produces
Nitrophosphate
Diammonium phosphate
Tricresyl phosphate
Tributyl phosphate
✅ The correct answer is option A.
3859. Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
Catalytic
Endothermic
Exothermic
Autocatalytic
✅ The correct answer is option C.
3830. Calcium ammonium nitrate (CAN) is
A mixed fertiliser
A straight fertiliser
A complex fertiliser
Not a fertiliser ; it is an explosive
✅ The correct answer is option C.