MCQOPTIONS
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MCQOPTIONS
This section includes 288 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Fertilizer plant getting its hydrogen requirement partly from coke oven gas is situated at |
| A. | Rourkela (under SAIL) |
| B. | Barauni (under HFC) |
| C. | Nangal (under NFL) |
| D. | Talchar (under FCI) |
| Answer» B. Barauni (under HFC) | |
| 152. |
Which of the following is not a mixed fertiliser ? |
| A. | Nitrophosphate |
| B. | Calcium ammonium nitrate (CAN) |
| C. | Ammonium phosphate |
| D. | None of these |
| Answer» C. Ammonium phosphate | |
| 153. |
Flushing liquor used for cooling coke oven gas constitutes of |
| A. | ammoniacal liquor |
| B. | K2CO3 solution |
| C. | dilute H2SO4 |
| D. | dilute HCl |
| Answer» B. K2CO3 solution | |
| 154. |
Reaction of calcium fluorapatite with sulphuric acid produces |
| A. | ortho-phosphoric acid. |
| B. | simple superphosphate. |
| C. | triple superphosphate. |
| D. | red phosphorous. |
| Answer» C. triple superphosphate. | |
| 155. |
Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent. |
| A. | 5 |
| B. | 20 |
| C. | 50 |
| D. | 65 |
| Answer» C. 50 | |
| 156. |
Catalyst used in ammonia synthesis uses __________ as a promoter. |
| A. | Pt |
| B. | K2O |
| C. | Al2O3 |
| D. | Ni |
| Answer» C. Al2O3 | |
| 157. |
Promoter used in NH3 synthesis catalyst is |
| A. | K2O |
| B. | SiO3 |
| C. | V2O5 |
| D. | U2O3 |
| Answer» B. SiO3 | |
| 158. |
Monte catini process is used for the manufacture of |
| A. | nitric acid |
| B. | phosphoric acid |
| C. | urea |
| D. | calcium ammonium nitrate (CAN) |
| Answer» D. calcium ammonium nitrate (CAN) | |
| 159. |
Nitric acid is produced on commercial scale in a fertiliser plant by |
| A. | oxidation of ammonia. |
| B. | CaNO3 + H2SO4 reaction. |
| C. | passing air through high voltage electric arc. |
| D. | none of these. |
| Answer» B. CaNO3 + H2SO4 reaction. | |
| 160. |
Fertiliser value of a nitrogeneous fertiliser is expressed in terms of its __________ content. |
| A. | N2 |
| B. | KNO3 |
| C. | NO2 |
| D. | NHO3 |
| Answer» B. KNO3 | |
| 161. |
Raw materials required for the production of CAN (Calcium ammonium nitrate) is NH3 |
| A. | HNO3 & limestone |
| B. | CO2 & H2SO4 |
| C. | HNO3 & NH4Cl |
| D. | CO2 & KNO3 |
| Answer» B. CO2 & H2SO4 | |
| 162. |
Maximum nitrogen percentage is in |
| A. | ammonium sulphate. |
| B. | calcium ammonium nitrate. |
| C. | urea. |
| D. | liquid ammonia. |
| Answer» E. | |
| 163. |
Rock phosphate used for the production of phosphatic fertiliser is mined at |
| A. | Amjhor (Jharkhand) |
| B. | Talchar (Orissa) |
| C. | Bailladella (M.P.) |
| D. | Kiriburu (Bihar) |
| Answer» B. Talchar (Orissa) | |
| 164. |
Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talchar (Orissa) |
| A. | use coal for heating purpose. |
| B. | gasify coal to get hydrogen from coal gas. |
| C. | use coal as filler in fertiliser. |
| D. | use coal as conditioner in fertiliser. |
| Answer» C. use coal as filler in fertiliser. | |
| 165. |
Which of the following is not a measure component necessarily to be present in fertilisers? |
| A. | Nitrogen |
| B. | Potassium |
| C. | Phosphorous |
| D. | Sulphur |
| Answer» E. | |
| 166. |
Main component of bone ash is |
| A. | calcium sulphate |
| B. | calcium phosphate |
| C. | calcium carbonate |
| D. | sodium phosphate |
| Answer» C. calcium carbonate | |
| 167. |
A fertiliser contains 82% N2. It could be |
| A. | urea |
| B. | liquid NH3 |
| C. | ammonium nitrate |
| D. | none of these |
| Answer» C. ammonium nitrate | |
| 168. |
Which of the following does not come under the category of 'micro-nutrient' for plant growth? |
| A. | Chlorine |
| B. | Iron |
| C. | Boron |
| D. | Carbon |
| Answer» E. | |
| 169. |
__________ is not a fertiliser. |
| A. | Calcium ammonium nitrate |
| B. | Ferrous sulphate |
| C. | Liquid ammonia |
| D. | Ammonium sulphate |
| Answer» C. Liquid ammonia | |
| 170. |
Which of the following is a natural inorganic fertiliser ? |
| A. | Chile salt petre |
| B. | Oilcake |
| C. | Gobar mannure |
| D. | None of these |
| Answer» B. Oilcake | |
| 171. |
Nitrogen content of a nitrogenous fertiliser is 35%. It could be |
| A. | urea |
| B. | ammonium nitrate |
| C. | calcium ammonium nitrate (CAN) |
| D. | ammonium sulphate |
| Answer» C. calcium ammonium nitrate (CAN) | |
| 172. |
Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition ? |
| A. | Electrolysis of water. |
| B. | Cryogenic removal of H2 from coke oven gas. |
| C. | Steam reforming of naphtha. |
| D. | Natural gas cracking. |
| Answer» B. Cryogenic removal of H2 from coke oven gas. | |
| 173. |
Catalyst used in desulphurisation of naphtha is |
| A. | Co-Mo |
| B. | Pt-Rh |
| C. | silica gel |
| D. | nickel |
| Answer» B. Pt-Rh | |
| 174. |
CaH4(PO4)2 is the chemical formula of |
| A. | superphosphate |
| B. | triple superphosphate |
| C. | calcium phosphate |
| D. | meta phosphoric acid |
| Answer» C. calcium phosphate | |
| 175. |
HPO3 is the chemical formula of __________ phosphoric acid. |
| A. | pyro |
| B. | ortho |
| C. | meta |
| D. | none of these |
| Answer» D. none of these | |
| 176. |
Nitrolime is |
| A. | calcium nitrate. |
| B. | calcium ammonium nitrate. |
| C. | a mixture of nitric acid and lime. |
| D. | a mixture of ammonium nitrate and calcium nitrate. |
| Answer» C. a mixture of nitric acid and lime. | |
| 177. |
Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent. |
| A. | 10 |
| B. | 25 |
| C. | 50 |
| D. | 80 |
| Answer» C. 50 | |
| 178. |
Conversion of yellow phosphorus to red phosphorous is done in retorts at 250-450°C in the$ |
| A. | presence of an inert atmosphere. |
| B. | presence of a reducing atmosphere. |
| C. | absence of air. |
| D. | presence of an oxidising atmosphere. |
| Answer» D. presence of an oxidising atmosphere. | |
| 179. |
The main constituent of rock phosphate is |
| A. | mono-calcium phosphate |
| B. | di-calcium phosphate |
| C. | fluorspar |
| D. | none of these |
| Answer» C. fluorspar | |
| 180. |
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen ? |
| A. | Calcium nitrate |
| B. | Calcium ammonium nitrate (CAN) |
| C. | Urea |
| D. | Ammonium sulphate |
| Answer» D. Ammonium sulphate | |
| 181. |
Temperature and pressure in urea autoclave is |
| A. | 120°C and 300 atm. |
| B. | 190°C and 200 atm. |
| C. | 400°C and 550 atm. |
| D. | 200°C and 10 atm. |
| Answer» C. 400¬∞C and 550 atm. | |
| 182. |
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. |
| Answer» C. liquid ammonia and excess compressed CO2. | |
| 183. |
Prilling of urea should be accomplished (in a sprayer) just above the melting point of urea with minimum of retention time, otherwise it will result in |
| A. | low bulk density product |
| B. | biuret formation |
| C. | non-spherical prills |
| D. | substantially wet non-flowing and sticky product |
| Answer» C. non-spherical prills | |
| 184. |
Fertiliser produced during soda ash manufacture by dual process is ammonium |
| A. | chloride |
| B. | sulphate |
| C. | nitrate |
| D. | none of these |
| Answer» B. sulphate | |
| 185. |
Triple superphosphate is made by reacting phosphate rock with __________ acid. |
| A. | phosphoric |
| B. | nitric |
| C. | sulphuric |
| D. | hydrochloric |
| Answer» B. nitric | |
| 186. |
Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas? |
| A. | Water |
| B. | Naphtha |
| C. | Tar |
| D. | Coal/coke oven gas |
| Answer» D. Coal/coke oven gas | |
| 187. |
A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia. |
| A. | coke oven |
| B. | producer |
| C. | natural |
| D. | coal |
| Answer» D. coal | |
| 188. |
Reaction of nitric acid and sulphuric acid with phosphate rock produces |
| A. | nitrophosphate |
| B. | diammonium phosphate |
| C. | tricresyl phosphate |
| D. | tributyl phosphate |
| Answer» B. diammonium phosphate | |
| 189. |
__________ is required more for leafy crops. |
| A. | Nitrogen |
| B. | Phosphorous |
| C. | Potassium |
| D. | Carbon |
| Answer» B. Phosphorous | |
| 190. |
Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is |
| A. | exothermic |
| B. | endothermic |
| C. | autocatalytic |
| D. | none of these |
| Answer» B. endothermic | |
| 191. |
Out of the following, N2 content is minimum in |
| A. | urea |
| B. | ammonium nitrate |
| C. | ammonium sulphate |
| D. | ammonium chloride |
| Answer» D. ammonium chloride | |
| 192. |
Dehydration of ammonium carbamate produces |
| A. | urea |
| B. | biuret |
| C. | ammonia water |
| D. | none of these |
| Answer» B. biuret | |
| 193. |
Chemical formula of metaphosphoric acid is |
| A. | H3PO4 |
| B. | H4P2O7 |
| C. | HPO3 |
| D. | same as that of pyrophosphoric acid |
| Answer» D. same as that of pyrophosphoric acid | |
| 194. |
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction. |
| A. | catalytic |
| B. | endothermic |
| C. | exothermic |
| D. | autocatalytic |
| Answer» D. autocatalytic | |
| 195. |
Low grade phosphate rock can be used in electrical furnace, because |
| A. | of the better CaO/SiO2 balance for slag formation. |
| B. | CaO content is less. |
| C. | it is cheap. |
| D. | it produces low cost product. |
| Answer» B. CaO content is less. | |
| 196. |
Tricresyl phosphate is chemically represented as |
| A. | (CH3 C6 H4)3 PO4 |
| B. | Ca10(PO4)3F6 |
| C. | (NH4)2HPO4 |
| D. | NH4H2PO4 |
| Answer» B. Ca10(PO4)3F6 | |
| 197. |
CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in |
| A. | mono-ethanolamine (MEA) |
| B. | slaked lime |
| C. | ammoniacal liquor |
| D. | Methyl-Ethyl Ketone (MEK) |
| Answer» B. slaked lime | |
| 198. |
Urea is formed only |
| A. | in liquid phase |
| B. | in vapour phase |
| C. | at very high temperature |
| D. | at very low pressure (vacuum) |
| Answer» B. in vapour phase | |
| 199. |
Yield of elemental phosphorous from rock phosphate is about __________ percent. |
| A. | 43497 |
| B. | 15-25 |
| C. | 40-45 |
| D. | 60-65 |
| Answer» C. 40-45 | |
| 200. |
Hydrogen content of coke oven gas is __________ percent. |
| A. | 4 |
| B. | 22 |
| C. | 58 |
| D. | 84 |
| Answer» D. 84 | |