chemical engineering fertilizer technology MCQs – Page 8

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 Review each marked answer and report any item that may be outdated or unclear.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
141. A nitrogenous fertiliser contains 20% N2. It could be_________________?
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A. Ammonium nitrate

B. Calcium ammonium nitrate (CAN)

C. Urea

D. Ammonium chloride

142. Which of the following is not a mixed fertiliser ?
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A. Calcium ammonium nitrate (CAN)

B. Ammonium phosphate

C. Nitrophosphate

D. None of these

143. pH value of soil is maintained at ______________ by the addition of fertiliser for optimum growth and health of the plant?
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A. 10-Sep

B. 13-Dec

C. 7-8

D. 5-Apr

144. Pick out the wrong statement ?
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A. Calcium present in the fertiliser helps in correcting the soil acidity

B. Nitrogen is normally supplied in fertiliser either in Ammoniacal or the nitrate form, from

C. Particle size range of a good granular fertiliser is 10-15 mesh and it contains less moisture as

D. e ovens</strong>

E. ch the soil takes it up in the form of ammonium ions or nitrate ions and forms amino acids

F. pared to finely divided powder form of fertiliser

145. Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ?
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A. Calcium nitrate

B. Urea

C. Calcium ammonium nitrate (CAN)

D. Ammonium sulphate

146. Catalyst used in the oxidation of ammonia is ________________?
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A. Platinum-beryllium

B. Platinum-molybdenum

C. Cobalt-molybdenum

D. Platinum-rhodium
147. Nitrolime is chemically known as____________________?
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A. Calcium nitrate

B. None of these

C. Ammonium nitrate

D. Calcium ammonium nitrate (CAN)
148. Gas based fertiliser plants use_________________?
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A. Natural gas as a source of hydrogen

B. Coal gas as heating medium

C. Coal gas as a source of hydrogen

D. Natural gas as heating medium

149. Reaction of phosphate rock with 98% H2SO4 produces ______________________?
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A. White phosphorous

B. Ortho-phosphoric acid

C. None of these

D. Superphosphate

150. Heating of ortho-phosphoric acid to about 900C, produces_________________?
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A. None of these

B. Pyrophosphoric acid

C. Meta-phosphoric acid

D. No change in it

151. Chemical formula of meta-phosphoric acid is ___________________?
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A. HPO3

B. H4P2O7

C. H3PO4

D. Same as that of Pyrophosphoric acid

152. Flushing liquor used for cooling coke oven gas constitutes of __________________?
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A. Dilute HCl

B. Dilute H2SO4

C. K2CO3 solution

D. Ammoniacal liquor
153. Prilling tower is found in the flowsheet for the manufacture of__________________?
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A. Ammonia

B. Triple superphosphate

C. Urea

D. Superphosphate

154. Base suspension fertiliser essentially contains___________________?
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A. 13% N2 and 43% P2O5

B. 43% N2 and 13% K2O

C. 43% N2 and 13% P2O5

D. 43% K2O and 43% P2O5

155. In the manufacture of urea, the intermediate chemical formed is__________________?
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A. Ammonium carbamate

B. None of these

C. Biuret

D. Ammonium carbonate

156. Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3__________________?
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A. CO2 & H2SO4

B. HNO3 & NH4Cl

C. HNO3 & limestone

D. CO2 & KNO3

157. Pick out the wrong statement?
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A. All the nitrogenous fertilisers are not soluble in water

B. The phosphorous nutrient makes the plant stem stronger and increases its branches

C. A straight fertiliser contains only one nutrient

D. Calcium cyanamide is used as weed killer in onion fields

158. In the manufacture of H3 PO4 (ortho); strong H2 SO4 leaching wet process as compared to electric furnace process___________________?
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A. Requires lower capital investment in the plant

B. Is very costly

C. Uses lower grade phosphate rock

D. Produces lower purity acid
159. Catalyst used in steam reforming of naphtha is ___________________?
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A. Nickel oxide on alumina support

B. Bauxite

C. Cobalt

D. Chromium

160. Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition _______________?
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A. Electrolysis of water

B. Cryogenic removal of H2 from coke oven gas

C. Natural gas cracking

D. Steam reforming of naphtha