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. |
Complete the reaction? C6H6 + NO2-OH ——–> _______ + H2O. |
| A. | C6H5-NH4 |
| B. | C6H5-NH3 |
| C. | C6H5-NO2 |
| D. | C6H5-OH |
| Answer» D. C6H5-OH | |
| 2. |
What is NO2+ called? |
| A. | Nitryl ion |
| B. | Nitronium ion |
| C. | Both of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
What does D.V.S stand for? |
| A. | Denitration of Sulphuric acid |
| B. | Dehydrating value of sulphuric acid |
| C. | Decomposition of Sulphuric acid |
| D. | None of the mentioned |
| Answer» C. Decomposition of Sulphuric acid | |
| 4. |
COMPLETE_THE_REACTION?_C6H6_+_NO2-OH_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ√Ü‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ√Ü‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬®>_________+_H2O.?$# |
| A. | C<sub>6</sub>H<sub>5</sub>-NH<sub>4</sub> |
| B. | C<sub>6</sub>H<sub>5</sub>-NH3 |
| C. | C<sub>6</sub>H<sub>5</sub>-NO<sub>2</sub> |
| D. | C<sub>6</sub>H<sub>5</sub>-OH |
| Answer» D. C<sub>6</sub>H<sub>5</sub>-OH | |
| 5. |
Why is keeping the D.V.S ratio high, a stability factor? |
| A. | Tends to complete nitration and esterification reaction |
| B. | Accumulation of incompletely nitrated material |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» B. Accumulation of incompletely nitrated material | |
| 6. |
What happens while decreasing the D.V.S value? |
| A. | Increase in stability |
| B. | Decrease in stability |
| C. | Doesn’t affect the stability |
| D. | Both increase and decrease stability |
| Answer» C. Doesn‚Äö√Ñ√∂‚àö√ë‚àö¬•t affect the stability | |
| 7. |
Which of the following is the correct formula? |
| A. | R= N/X |
| B. | EN/R = EX |
| C. | X= N/R |
| D. | All of the mentioned |
| Answer» E. | |
| 8. |
To calculate D.V.S. from the mixed-acid analysis the formula is, D.V.S ___________ |
| A. | S/(EW/R+W) |
| B. | S/(ES/R+W) |
| C. | S / (ER/ R+W) |
| D. | S / (EN / R+W) |
| Answer» E. | |
| 9. |
What is NO2+ called? |
| A. | Nitryl ion |
| B. | Nitronium ion |
| C. | Both of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 10. |
What do you mean by Nitric ratio? |
| A. | Ratio of wt of 100% HNO<sub>3</sub> / wt of materials being nitrated |
| B. | Ratio of wt of 100% HNO<sub>3</sub>/ wt of 100% H<sub>2</sub>SO<sub>4</sub> |
| C. | Ratio of wt of 100% H<sub>2</sub>SO<sub>4</sub>/ wt of materials being nitrated |
| D. | Ratio of wt of 100% H<sub>2</sub>SO<sub>4</sub>/ wt of 100% HNO<sub>3</sub> |
| Answer» B. Ratio of wt of 100% HNO<sub>3</sub>/ wt of 100% H<sub>2</sub>SO<sub>4</sub> | |
| 11. |
What do we denote Nitric ratio as? |
| A. | N |
| B. | n |
| C. | R |
| D. | r |
| Answer» D. r | |
| 12. |
What is the full form of D.V.S in Mixed Acids Nitration? |
| A. | Denitration of Sulphuric acid |
| B. | Dehydrating value of sulphuric acid |
| C. | Decomposition of Sulphuric acid |
| D. | None of the mentioned |
| Answer» C. Decomposition of Sulphuric acid | |
| 13. |
Why is there a need to have one of the reactant in excess? |
| A. | To achieve equilibrium faster |
| B. | Satisfying the stoichiometric requirement |
| C. | Stable reaction |
| D. | All of the mentioned |
| Answer» E. | |