MCQOPTIONS
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MCQOPTIONS
This section includes 167 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. |
An increase in the NH3/CO2 ratio in urea manufacture results in__________________? |
| A. | Increased degree of conversion of CO2 to urea |
| B. | Decreased degree of conversion of NH3 to urea |
| C. | Decreased yield of urea |
| D. | Decreased specific volume of molten mass |
| Answer» B. Decreased degree of conversion of NH3 to urea | |
| 152. |
Ammonium sulphate fertiliser is __________________? |
| A. | The highest concentration nitrogenous fertiliser |
| B. | The best fertiliser for paddy |
| C. | A basic fertiliser |
| D. | A neutral fertiliser |
| Answer» C. A basic fertiliser | |
| 153. |
Ammonium sulphate can be produced by reacting gypsum with____________________? |
| A. | Ammonia |
| B. | Ammonium carbonate |
| C. | Nitric acid |
| D. | None of these |
| Answer» C. Nitric acid | |
| 154. |
Ammonium phosphate is a _____________ fertiliser? |
| A. | Nitrogenous |
| B. | Phosphatic |
| C. | Complex |
| D. | Mixed |
| Answer» E. | |
| 155. |
Ammonium nitrate is___________________? |
| A. | Having about 40% N2 |
| B. | Not hygroscopic |
| C. | Not prone to explosive thermal decomposition |
| D. | Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer |
| Answer» E. | |
| 156. |
Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because______________________? |
| A. | It is hygroscopic and explosive in nature |
| B. | It is highly acidic in nature |
| C. | It is a liquid at room temperature |
| D. | Its nitrogen content is very less |
| Answer» B. It is highly acidic in nature | |
| 157. |
Ammonium nitrate (a fertiliser) is coated with limestone powder to ____________________? |
| A. | Increase its nitrogen content |
| B. | Cut down its production cost |
| C. | Avoid the risk of explosion |
| D. | Add extra nutrient as fertiliser |
| Answer» D. Add extra nutrient as fertiliser | |
| 158. |
Ammonia synthesis reaction is______________________? |
| A. | Exothermic |
| B. | Endothermic |
| C. | Autocatalytic |
| D. | None of these |
| Answer» B. Endothermic | |
| 159. |
Ammonia synthesis gas is produced from natural gas by___________________? |
| A. | Thermal cracking |
| B. | Steam reforming |
| C. | Partial oxidation |
| D. | Hydrogenation |
| Answer» C. Partial oxidation | |
| 160. |
Ammonia synthesis gas is produced from fuel oil by _________________? |
| A. | Steam reforming |
| B. | Hydro-cracking |
| C. | Partial oxidation |
| D. | Hydrogenation |
| Answer» D. Hydrogenation | |
| 161. |
Action of phosphoric acid on rock phosphate produces_________________? |
| A. | Superphosphate |
| B. | Triple superphosphate |
| C. | Nitrophosphate |
| D. | Diammonium phosphate |
| Answer» C. Nitrophosphate | |
| 162. |
A Potassic fertiliser contains 50% K2O. It could be _________________? |
| A. | Potassium sulphate |
| B. | Potassium chloride |
| C. | A mixture of NaCl + KCl |
| D. | None of these |
| Answer» B. Potassium chloride | |
| 163. |
A phosphatic fertiliser contains 16% P2O5. It could be________________? |
| A. | Dicalcium phosphate |
| B. | Superphosphate |
| C. | Triple superphosphate |
| D. | None of these |
| Answer» C. Triple superphosphate | |
| 164. |
A nitrogenous fertiliser contains 20% N2. It could be_________________? |
| A. | Ammonium nitrate |
| B. | Calcium ammonium nitrate (CAN) |
| C. | Urea |
| D. | Ammonium chloride |
| Answer» C. Urea | |
| 165. |
A mixture of phosphate rock ______________ is heated in an electric furnace to produce phosphorous? |
| A. | Salt & coke |
| B. | Sand & coke |
| C. | And coke |
| D. | And sand |
| Answer» C. And coke | |
| 166. |
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 | |
| 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 | |