Fertiliser Technology Online MCQ Practice Test - Set 01 - ObjectiveBooks

Fertiliser Technology Online MCQ Practice Test - Set 01

Practice Test: Question Set - 01

1. Sodium tri poly phosphate (STPP) is chemically represented as
    (A) Na5P3O10
    (B) Na4P3O8
    (C) Na3P4O6
    (D) Na2PO4

2. Which of the following does not come under the category of 'micro-nutrient' for plant growth?
    (A) Chlorine
    (B) Iron
    (C) Boron
    (D) Carbon

3. Raw materials for nitric acid manufacture are
    (A) Hydrogen peroxide, air and water
    (B) Anhydrous ammonia and air
    (C) Anhydrous ammonia, air and water
    (D) Wet ammonia, air and water

4. H4P2O7 is the chemical formula of __________ phosphoric acid.
    (A) Pyro
    (B) Ortho
    (C) Meta
    (D) None of these

5. Plant tranquillisers
    (A) Hold back stem growth and halt plants at a desired height
    (B) Cause early maturation of plants
    (C) Accelerate ripening of food and grain
    (D) Produce seedless fruit

6. Catalytic ammonia synthesis reaction as in Haber's process is
    (A) Endothermic
    (B) Exothermic
    (C) Irreversible
    (D) None of these

7. Nitrogen content of a nitrogenous fertilizer is 35%. It could be
    (A) Urea
    (B) Ammonium nitrate
    (C) Calcium ammonium nitrate (CAN)
    (D) Ammonium sulphate

8. Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils?
    (A) Urea
    (B) CAN
    (C) Ammonium sulphate
    (D) Calcium cyanamide

9. Nitrogen content of urea is about __________ percent.
    (A) 10
    (B) 46
    (C) 80
    (D) 94

10. The most suitable fertilizer for accelerating seeding or fruit formation in later stages of plant growth is __________ fertilizer.
    (A) Nitrogenous
    (B) Phosphatic
    (C) Potassic
    (D) None of these

11. With increases in pressure, the conversion of Ammonium carbamate into urea
    (A) Increases
    (B) Decreases
    (C) Remains unaltered
    (D) Can either increase or decrease depends on biuret content

12. Triple superphosphate is made by reacting phosphate rock with __________ acid.
    (A) Phosphoric
    (B) Nitric
    (C) Sulphuric
    (D) Hydrochloric

13. Nitric acid is produced on commercial scale in a fertilizer plant by
    (A) Oxidation of ammonia
    (B) CaNO3 + H2SO4 reaction
    (C) Passing air through high voltage electric arc
    (D) None of these

14. __________ catalyst is used in the production of urea from CO2 and NH3.
    (A) Vanadium pentoxide
    (B) No
    (C) Alumina
    (D) Nickel

15. In ammonia synthesis (N2 + 3H2 = 2NH3), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at
    (A) Low pressure
    (B) High pressure
    (C) Very high temperature
    (D) Atmospheric pressure; as the pressure has no effect on conversion

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