Practice Test: Question Set - 10
1. Fertilizer plant getting its hydrogen requirement partly from coke oven gas is (in India) situated at
- (A) Rourkela (under SAIL)
- (B) Barauni (under HFC)
- (C) Nangal (under NFL)
- (D) Talcher (under FCI)
2. Which is a catalyst promoter used in catalytic ammonia synthesis reaction?
- (A) Al2O3
- (B) Cr2O3
- (C) K2O
- (D) MnO
3. Heating of ortho-phosphoric acid to about 900°C, produces
- (A) Meta-phosphoric acid
- (B) Pyrophosphoric acid
- (C) No change in it
- (D) None of these
4. Montecatini process is a widely used process for the manufacture of
- (A) Urea
- (B) Calcium ammonium nitrate
- (C) Triple superphosphate
- (D) None of these
5. Prilling tower is found in the flowsheet for the manufacture of
- (A) Ammonia
- (B) Urea
- (C) Superphosphate
- (D) Triple superphosphate
6. NPK fertilizer is a __________ fertilizer.
- (A) Complex
- (B) Mixed
- (C) Nitrogenous
- (D) Phosphatic
7. Which of the following fertilizers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits?
- (A) Nitrogenous fertilizers
- (B) Phosphatic fertilizers
- (C) Potassic fertilizer
- (D) None of these
8. Red phosphorous is changed into white phosphorous by
- (A) Heating in presence of light
- (B) Melting under pressure
- (C) Vaporization followed by condensation
- (D) None of these
9. Both white phosphorous as well as red phosphorous
- (A) Are soluble in CS2
- (B) Burns when heated in air
- (C) Reacts with hot caustic soda solution to give
Phosphine
- (D) All (a), (b), and (c)
10. Reaction of nitric acid and sulphuric acid with phosphate rock produces
- (A) Nitrophosphate
- (B) Diammonium phosphate
- (C) Tricresyl phosphate
- (D) Tributyl phosphate
11. Urea is a __________ fertilizer.
- (A) Nitrogenous
- (B) Potassic
- (C) Phosphatic
- (D) None of these
12. Phosphatic fertilizers
- (A) Are useful during early stage of the plant growth
- (B) Accelerate fruit formation in later stages of growth
- (C) Lessen the effect of excessive nitrogen application
- (D) None of these
13. Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
- (A) Exothermic
- (B) Endothermic
- (C) Autocatalytic
- (D) Catalytic
14. Reaction of ortho-phosphoric acid with soda ash produces
- (A) Sodium Tributyl phosphate (STPP)
- (B) Tricresyl phosphate
- (C) Tributyl phosphate
- (D) Nitrophosphate
15. Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent.
- (A) 5
- (B) 20
- (C) 50
- (D) 65
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