MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Unit Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What do we denote Heat of Sulfonation with SO3 vapour as? |
| A. | dHv |
| B. | dHD |
| C. | dHc |
| D. | dHf |
| Answer» B. dHD | |
| 2. |
Complete the following reaction: ROH + H2SO4 <=======> _______ + H2O. |
| A. | RSO2H |
| B. | RSO3H |
| C. | ROSO3H |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
When H2SO4 is used as a Sulfonating agent, what effect does formation of water has on the reaction? |
| A. | Slows down the reaction |
| B. | Fast the reaction |
| C. | Reduces activation energy |
| D. | None of the mentioned |
| Answer» B. Fast the reaction | |
| 4. |
WHAT_DO_WE_DENOTE_HEAT_OF_SULFONATION_WITH_SO3_VAPOUR_AS??$ |
| A. | dHv |
| B. | dHD |
| C. | dHc |
| D. | dHf |
| Answer» B. dHD | |
| 5. |
What is (dH)D ? |
| A. | Heat of Sulfonation |
| B. | Heat of Dissociation |
| C. | Heat of Deformation |
| D. | Heat of Formation |
| Answer» C. Heat of Deformation | |
| 6. |
Which type of reaction is the heat of Sulfonation reaction? |
| A. | Exothermic |
| B. | Endothermic |
| C. | Neutral |
| D. | None of the mentioned |
| Answer» B. Endothermic | |
| 7. |
Complete the following reaction: ROH + H2SO4 <=======> _______ + H2O. |
| A. | RSO<sub>2</sub>H |
| B. | RSO<sub>3</sub>H |
| C. | ROSO<sub>3</sub>H |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 8. |
Why is the intermediate compound in Sulfonation electrically more stable ? |
| A. | It contains negative charge |
| B. | It contains positive charge |
| C. | It’s neutral |
| D. | None of the mentioned |
| Answer» B. It contains positive charge | |
| 9. |
Aromatic substitution reactions, including sulfonation, are conceived in two steps. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Which of the following is a true Sulfonating agent? |
| A. | SO<sub>3</sub> |
| B. | H<sub>3</sub>SO<sub>4</sub>+ |
| C. | HSO<sub>3</sub>+ |
| D. | All of the mentioned |
| Answer» E. | |
| 11. |
When H2SO4 is used as a Sulfonating agent, what effect does formation of water has on the reaction? |
| A. | Slows down the reaction |
| B. | Fast the reaction |
| C. | Reduces activation energy |
| D. | None of the mentioned |
| Answer» B. Fast the reaction | |
| 12. |
How does Sulfonation differ from other reactions? |
| A. | Reaction temperature |
| B. | Reversible reaction |
| C. | Both temperature and reversible reaction |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 13. |
Which of the following aromatic sulfonation is not an electrophilic substitution reaction? |
| A. | Nitration |
| B. | Halogenation |
| C. | Alkylation |
| D. | None of the mentioned |
| Answer» E. | |