Fertilizer Technology MCQ - Set 08 - ObjectiveBooks

Fertilizer Technology MCQ - Set 08

Practice Test: Question Set - 08


1. Pick out the wrong statement.
    (A) Nitrogen is normally supplied in fertilizer either in Ammoniacal or the nitrate form, from which the soil takes it up in the form of ammonium ions or nitrate ions and forms amino acids
    (B) Calcium present in the fertilizer helps in correcting the soil acidity
    (C) Particle size range of a good granular fertilizer is 10-15 mesh and it contains less moisture as compared to finely divided powder form of fertilizer
    (D) Ammonium nitrate fertilizer is obtained as a by-product in an integrated steel plant having by-product coke ovens

2. Ammonium sulphate can be produced by reacting gypsum with
    (A) Ammonia
    (B) Ammonium carbonate
    (C) Nitric acid
    (D) None of these

3. Chemical formula of biuret is
    (A) NH2.CO.NH2
    (B) NH3.COO.NH3
    (C) NH2CONHCONH2
    (D) NH4COONH2

4. Out of the following, N2 content is minimum in
    (A) Urea
    (B) Ammonium nitrate
    (C) Ammonium sulphate
    (D) Ammonium chloride

5. Ammonia synthesis gas is produced from natural gas by
    (A) Thermal cracking
    (B) Steam reforming
    (C) Partial oxidation
    (D) Hydrogenation

6. The optimum size of the ammonia plant is __________ tons/day.
    (A) 10
    (B) 100
    (C) 1000
    (D) 10000

7. In an ammonia plant, the purge off is essential to
    (A) Maintain inert gas concentration within a limit
    (B) Remove excess poisonous gases
    (C) Maintain H2 : N2 ratio at 3 :1
    (D) Remove uncondensed ammonia vapour

8. Phosphoric acid is produced in wet process from phosphate rock and
    (A) Dilute H2SO4
    (B) Concentrated H2SO4
    (C) Concentrated NHO3
    (D) Concentrated HCl

9. Pick out the wrong statement.
    (A) Dehydration of ammonium carbamate to produce urea is endothermic
    (B) Direct use of liquid ammonia as a fertilizer for a tropical country like India is suitable
    (C) Gypsum (CaSO4. 2H2O) is obtained as a by-product in the wet process for manufacture of ortho-phosphoric acid
    (D) Phosphate rock when reacted with dilute H2SO4 produces superphosphate

10. Iron is not used alone as a catalyst in ammonia synthesis, because
    (A) Its activity declines rapidly, if heated to above 520°C
    (B) It decomposes ammonia
    (C) It gets oxidized above 500°C
    (D) None of these

11. Superphosphate is manufactured by reacting phosphate rock with
    (A) Acetic acid
    (B) Sulphuric acid
    (C) Aluminium chloride
    (D) None of these

12. Rock phosphate constitutes mainly of
    (A) Fluorapatite
    (B) Di-calcium phosphate
    (C) Mono-calcium phosphate
    (D) Di-ammonium phosphate

13. Which of the following nitrogenous fertilizers has the highest percentage of nitrogen?
    (A) Calcium nitrate
    (B) Calcium ammonium nitrate (CAN)
    (C) Urea
    (D) Ammonium sulphate

14. Electric process as compared to wet process (for the manufacture of phosphoric acid)
    (A) Can use only high grade phosphate rock
    (B) Is used less frequently
    (C) Produces a valuable by-product called gypsum
    (D) Is weak acid process

15. In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed.
    (A) Fauser-Montecatini
    (B) Claude
    (C) Uhde
    (D) Kellogg

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