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Fertilizer Technology-Data Intensity 2 Multiple Questions and Answers.
| 1. | Catalytic ammonia synthesis reaction as in Haber�s process is___? | ||
| A. | Endothermic | ||
| B. | Exothermic | ||
| C. | Irreversible | ||
| D. | None of these | ||
| 2. | Which one of the following is used as a nitrogenous fertiliser, as a weed killer in the onion fields and for correcting acidic soils ? | ||
| A. | Urea | ||
| B. | CAN | ||
| C. | Ammonium sulphate | ||
| D. | Calcium cyanamide | ||
| 3. | The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is ____ fertiliser? | ||
| A. | Nitrogenous | ||
| B. | Phosphatic | ||
| C. | Potassic | ||
| D. | None of these | ||
| 4. | Triple superphosphate is made by reacting phosphate rock with _____ acid? | ||
| A. | Phosphoric | ||
| B. | Nitric | ||
| C. | Sulphuric | ||
| D. | Hydrochloric | ||
| 5. | _ catalyst is used in the production of urea from CO2 and NH3?? | ||
| A. | Vanadium pentoxide | ||
| B. | No | ||
| C. | Alumina | ||
| D. | Nickel | ||
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