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chemical engineering fertilizer technology MCQs

Practise multiple-choice questions from chemical engineering fertilizer technology for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering fertilizer technology Mcqs

1. Color of nitric acid is light yellow due to the presence of__________________?
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A. NO2

B. N2H5

C. NO

D. NH3

2. Urea is represented as______________________?
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A. NH.CO2.NH

B. NH2.CO.NH2

C. NH3CO.CH3

D. NH3.CO2.NH3

3. Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talcher (Orissa) ?
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A. Use coal as filler in fertiliser

B. Use coal as conditioner in fertiliser

C. Use coal for heating purpose

D. Gasify coal to get hydrogen from coal gas

4. Bio-fertilisers are cheaper, renewable and pollution free. They improve the _____________ of the soil?
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A. Texture

B. All A., B. and C.

C. Water holding capacity

D. Nutrient supply

5. Steam reforming of naphtha is a source of hydrogen production for nitrogenous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha ?
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A. 3.5 : 1

B. 1.5 : 1

C. 10:01

D. 15:01

6. Ammonium sulphate fertiliser is __________________?
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A. A neutral fertiliser

B. A basic fertiliser

C. The best fertiliser for paddy

D. The highest concentration nitrogenous fertiliser

7. Catalyst used in ammonia synthesis uses ____________ as a promoter?
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A. Pt

B. Al2O3

C. Ni

D. K2O

8. Catalyst used in steam reforming of naphtha is__________________?
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A. Rhodium

B. Platinum

C. Silica gel

D. Nickel

9. Dehydration of ammonium carbamate produces__________________?
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A. Urea

B. None of these

C. Biuret

D. Ammonia water

10. Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils ?
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A. Calcium cyanamide

B. Ammonium sulphate

C. Urea

D. CAN

11. An increase in the NH3/CO2 ratio in urea manufacture results in__________________?
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A. Increased degree of conversion of CO2 to urea

B. Decreased specific volume of molten mass

C. Decreased degree of conversion of NH3 to urea

D. Decreased yield of urea

12. Nitrogen content of calcium ammonium nitrate (CAN) is _____________ percent?
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A. 80

B. 10

C. 25

D. 50

13. Two gas based fertiliser plants are located in India are_________________?
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A. Gujarat and Madhya Pradesh

B. Maharashtra and Gujarat

C. Maharashtra and Orissa

D. Jharkhand and Chhattisgarh

14. The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is _____________ fertiliser?
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A. Potassic

B. Phosphatic

C. None of these

D. Nitrogenous

15. Red phosphorous is changed into white phosphorous by______________________?
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A. None of these

B. Heating in presence of light

C. Vaporisation followed by condensation

D. Melting under pressure

16. Effectiveness of a fertiliser is independent of the ___________________?
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A. None of these

B. pH of soil

C. Type of crop

D. Nature of soil

17. Multistage operation (as in the case of catalytic oxidation of SO2) is not carried out for NH3 synthesis, because of____________________?
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A. Higher pumping cost

B. Comparatively higher pressure drop

C. Chances of entrainment and disturbance of catalyst bed

D. High cost of the high pressure vessel used for the reactor

18. Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at ____________ C in absence of air?
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A. 50-80

B. 800-900

C. 250-400

D. 1000-1200

19. Naphtha in a fertiliser plant is used as a source of___________________?
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A. O2

B. N2

C. H2

D. Fuel

20. Reaction of anhydrous liquid ammonia with ortho-phosphoric acid produces____________________?
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A. Ammonium phosphate

B. None of these

C. Superphosphate

D. Triple superphosphate

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