Fertilizer Technology MCQs pdf - Set 09 - ObjectiveBooks

Fertilizer Technology MCQs pdf - Set 09

Practice Test: Question Set - 09


1. Fertilizer produced during soda ash manufacture by dual process is ammonium
    (A) Chloride
    (B) Sulphate
    (C) Nitrate
    (D) None of these

2. Vetrocoke solution is
    (A) A mixture of K2CO3 and As2O3
    (B) K2SO4
    (C) A mixture of Na2CO3 and As2O3
    (D) Na2SO4

3. Potassic fertilizer is graded based on its __________ content.
    (A) KCl
    (B) K2O
    (C) KNO3
    (D) K2SO4

4. Ammonia synthesis gas is produced from fuel oil by
    (A) Steam reforming
    (B) Hydro-cracking
    (C) Partial oxidation
    (D) Hydrogenation

5. Dehydration of ammonium carbamate (to produce urea) is a/an __________ reaction.
    (A) Reversible
    (B) Catalytic
    (C) Exothermic
    (D) Endothermic

6. Reaction of calcium Fluorapatite with sulphuric acid produces
    (A) Ortho-phosphoric acid
    (B) Simple superphosphate
    (C) Triple superphosphate
    (D) Red phosphorous

7. The composition of fresh feed to the high temperature, high pressure urea autoclave is
    (A) Excess liquid ammonia and liquefied CO2
    (B) Excess liquid ammonia and compressed CO2 gas
    (C) Liquid ammonia and excess compressed CO2
    (D) Compressed ammonia gas and excess compressed CO2

8. Pick out the wrong statement.
    (A) Yellow phosphorous which is the most reactive allotropic form of phosphorous is transported under water
    (B) Apatite is the principal material present in phosphate rock which is chemically Ca10 (PO4)6 (F, Cl, OH)
    (C) Urea is more hygroscopic than ammonium nitrate
    (D) Nitrogen fixation means the process of bringing atmospheric nitrogen into combination i.e. into nitrogen compound form

9. A fertilizer contains 82% N2. It could be
    (A) Urea
    (B) Liquid NH3
    (C) Ammonium nitrate
    (D) None of these

10. Which of the following solvents is used for the extraction of H3PO4 from CaCl2 solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching?
    (A) Isopropyl alcohol
    (B) Butyl alcohol
    (C) Toluene
    (D) Hexane

11. Catalyst used in the manufacture of NH3 by Haber's process is finely divided
    (A) Nickel
    (B) Iron
    (C) Vanadium pentoxide
    (D) Alumina

12. Main component of bone ash is
    (A) Calcium sulphate
    (B) Calcium phosphate
    (C) Calcium carbonate
    (D) Sodium phosphate

13. ________ is required more for leafy crops.
    (A) Nitrogen
    (B) Phosphorous
    (C) Potassium
    (D) Carbon

14. Ammonium nitrate (a fertilizer) is coated with limestone powder to
    (A) Increase its nitrogen content
    (B) Cut down its production cost
    (C) Avoid the risk of explosion
    (D) Add extra nutrient as fertilizer

15. Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent.
    (A) 10
    (B) 25
    (C) 50
    (D) 80

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