MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
Why minor quantities of Na2CO3 required in electrolysis process? |
| A. | For Cl<sub>2</sub> drying |
| B. | For high purity brine |
| C. | For salt purification |
| D. | For high purity depleted brine |
| Answer» D. For high purity depleted brine | |
| 2. |
Where denuding is occur_______ |
| A. | Diaphragm cell |
| B. | Mercury cell |
| C. | Membrane cell |
| D. | Voltaic cell |
| Answer» C. Membrane cell | |
| 3. |
Which one is a NaOH process with no Cl2 co-product? |
| A. | HCl-air oxidation with Fe<sub>2</sub>O<sub>3</sub> |
| B. | HCl-air-Cl<sub>2</sub> oxychlorination |
| C. | HNO<sub>3</sub>-Nacl-air process |
| D. | Na<sub>2</sub>CO<sub>3</sub> Ca(OH)<sup>2</sup> |
| Answer» E. | |
| 4. |
What is the disadvantage of solvay process? |
| A. | No co-products to dispose |
| B. | Use of low-grade brine |
| C. | Higher salt consumption |
| D. | Low corrosion problems |
| Answer» D. Low corrosion problems | |
| 5. |
What is the modification of the dual process? |
| A. | Recovery of NH<sub>4</sub>Cl as co-product |
| B. | Recovery of NH<sub>3</sub> as co-product |
| C. | Recovery of NaHCO<sub>3</sub> as co-product |
| D. | Recovery of NH<sub>3</sub>4(NO<sub>3</sub>) as co-product |
| Answer» B. Recovery of NH<sub>3</sub> as co-product | |
| 6. |
In solvay process, where purified brine is pumped? |
| A. | CO absorber tower |
| B. | H<sub>2</sub>O absorber tower |
| C. | NH<sub>3</sub> absorber tower |
| D. | Carbonation tower |
| Answer» D. Carbonation tower | |
| 7. |
What is the input bulk requirements for the solvay process? |
| A. | Salt, coal and water |
| B. | Salt, coal and limestone |
| C. | Salt, limestone and water |
| D. | Coal, limestone and water |
| Answer» C. Salt, limestone and water | |
| 8. |
Which one is dual process? |
| A. | Na<sub>2</sub>CO<sub>3</sub>+NH<sub>4</sub>Cl |
| B. | Na<sub>2</sub>CO<sub>3</sub>+NaCl |
| C. | NH<sub>4</sub>Cl+Ca(OH)<sup>2</sup> |
| D. | CaCO<sub>3</sub>+NaCl |
| Answer» B. Na<sub>2</sub>CO<sub>3</sub>+NaCl | |
| 9. |
Which one mentioned below is not a major industrial chemical produced by chloro-alkali industry? |
| A. | Soda ash |
| B. | Caustic soda |
| C. | Chlorine |
| D. | Ammonium carbonate |
| Answer» E. | |