MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
Which of the following is not a requirement for membrane separators? |
| A. | Good mechanical properties |
| B. | Long term stability |
| C. | High electrical resistance |
| D. | Durability under required conditions |
| Answer» D. Durability under required conditions | |
| 2. |
Membrane used in membrane cell process is ______________ |
| A. | Asbestos |
| B. | Anion- exchange membrane |
| C. | Cation-exchange membrane |
| D. | Woven fabric |
| Answer» D. Woven fabric | |
| 3. |
Which of the following product is obtained at cathode in mercury cell process? |
| A. | NaOH |
| B. | NaHg |
| C. | Cl<sub>2</sub> |
| D. | NaCl |
| Answer» C. Cl<sub>2</sub> | |
| 4. |
Diaphragm used in diaphragm cell process is ______________ |
| A. | Asbestos |
| B. | Poly vinyl chloride |
| C. | Wooden material |
| D. | Woven fabric |
| Answer» B. Poly vinyl chloride | |
| 5. |
Pure sodium hydroxide is obtained in mercury cell process. Is the statement true/false? |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Which of the following is a disadvantage of membrane cell process? |
| A. | Asbestos emission |
| B. | Mercury contamination |
| C. | High purity of brine |
| D. | High electrical energy consumption |
| Answer» D. High electrical energy consumption | |
| 7. |
Which of the following is an advantage of mercury cell process? |
| A. | Pure sodium hydroxide |
| B. | Pure chlorine gas |
| C. | Utilization of less pure brine |
| D. | Low electrical energy consumption |
| Answer» C. Utilization of less pure brine | |
| 8. |
Concentration of NaOH produced in mercury cell process is ___________ |
| A. | 10-12% |
| B. | 30-33% |
| C. | 50% |
| D. | 70% |
| Answer» E. | |
| 9. |
Reagent used for drying of Cl2 is ______________ |
| A. | H<sub>3</sub>PO<sub>4</sub> |
| B. | H<sub>2</sub>SO<sub>4</sub> |
| C. | HCl |
| D. | HNO<sub>3</sub> |
| Answer» C. HCl | |
| 10. |
Major production of caustic soda is through ________________ |
| A. | Mercury cell process |
| B. | Diaphragm cell process |
| C. | Chemical process |
| D. | Mebrane cell process |
| Answer» B. Diaphragm cell process | |
| 11. |
Which of the following is denuding reaction? |
| A. | NaCl+H<sub>2</sub>O (NaOH+ frac{1}{2} H_2+ frac{1}{2} Cl_2 ) |
| B. | Cl<sup> </sup> ( frac{1}{2} ) Cl<sub>2</sub> + e<sup> </sup> |
| C. | Na + Hg NaHg |
| D. | NaHg+H<sub>2</sub>O NaOH+ ( frac{1}{2} ) H<sub>2</sub> + Hg |
| Answer» E. | |
| 12. |
Cathode used in electrolysis of brine by diaphragm cell type is _____________ |
| A. | Lead |
| B. | Iron |
| C. | Titanium |
| D. | Carbon |
| Answer» C. Titanium | |
| 13. |
High concentration of NaOH is produced by _____________ |
| A. | Mebrane cell process |
| B. | Diaphragm cell process |
| C. | Mercury cell process |
| D. | Chemical process |
| Answer» D. Chemical process | |
| 14. |
Sodium hydroxide is insoluble in water. |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
What are the co-products in the electrolysis of brine? |
| A. | Chlorine and caustic soda |
| B. | Soda ash and caustic soda |
| C. | Soda ash and chlorine |
| D. | Chlorine, caustic soda, and soda ash |
| Answer» B. Soda ash and caustic soda | |