MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Industry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
At which stage ammonia is added if ammonium phosphate is required in manufacture of triple super phosphate? |
| A. | Continuous belt reactor |
| B. | Rotary dryer |
| C. | Rotary granulator |
| D. | Feeder |
| Answer» D. Feeder | |
| 2. |
What is the reaction time of triple super phosphate formation? |
| A. | 15-20 min |
| B. | 5-6 min |
| C. | 5-15 min |
| D. | 20-30 min |
| Answer» B. 5-6 min | |
| 3. |
What is the chemical formula of triple super phosphate? |
| A. | (Ca3 (PO4)2)3∙CaF2 |
| B. | CaH4 (PO4)2 |
| C. | Ca3 (PO4)2 |
| D. | CaH4 (PO4)2∙CaSO4 |
| Answer» C. Ca3 (PO4)2 | |
| 4. |
What is the chemical formula of super phosphate? |
| A. | CaH4 (PO4)2 |
| B. | Ca3 (PO4)2 |
| C. | CaH4 (PO4)2∙CaSO4 |
| D. | (Ca3 (PO4)2)3∙CaF2 |
| Answer» D. (Ca3 (PO4)2)3∙CaF2 | |
| 5. |
What is the percentage of P2O5 present in triple super phosphate? |
| A. | 16-20% |
| B. | 42-50% |
| C. | 30-35% |
| D. | 62-70% |
| Answer» C. 30-35% | |
| 6. |
Super phosphate grade of calcium phosphate is formed by reacting with which of the following acid? |
| A. | H2SO4 |
| B. | HCl |
| C. | H3PO4 |
| D. | HNO3 |
| Answer» B. HCl | |