MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Predict the major product of the following reaction. |
| A. | o-nitrobenzaldehyde and p-nitrobenzaldehyde |
| B. | m-nitrobenzaldehyde |
| C. | o-formylbenzenesulfonic acid and p-formylbenzenesulfonic acid |
| D. | m-formylbenzenesulfonic acid |
| Answer» C. o-formylbenzenesulfonic acid and p-formylbenzenesulfonic acid | |
| 2. |
Nitration of furan using acetyl nitrate also leads to a 2,5-addition product. How can this competing process be suppressed? |
| A. | By using concentrated nitric and sulfuric acids instead of acetyl nitrate |
| B. | By carrying out the reaction at higher temperatures |
| C. | By carrying out the nitration in the presence of pyridine |
| D. | By using nitric acid instead of acetyl nitrate |
| Answer» D. By using nitric acid instead of acetyl nitrate | |
| 3. |
What will be the product if 1,1-halonitroalkane undergoes nucleophilic aliphatic substitution reaction in presence of potassiam hydroxide? |
| A. | 1,1-dinitro dimer |
| B. | 1,2-dinitro dimer |
| C. | 1.-nitro compound |
| D. | 2-nitrocompound |
| Answer» C. 1.-nitro compound | |
| 4. |
What is the name of the following reaction? |
| A. | Ter meer reaction |
| B. | Riemer tiemann reaction |
| C. | Perkin condensation |
| D. | Ullmann reaction |
| Answer» B. Riemer tiemann reaction | |
| 5. |
Which of the following is used as a reactant for the nitration of benzene to form nitrobenzene? |
| A. | HNO2 |
| B. | HNO3 |
| C. | Mixture of HNO2 AND HNO3 |
| D. | Mixture of HNO2 and H2SO4 |
| Answer» D. Mixture of HNO2 and H2SO4 | |
| 6. |
NITRATION_OF_FURAN_USING_ACETYL_NITRATE_ALSO_LEADS_TO_A_2,5-ADDITION_PRODUCT._HOW_CAN_THIS_COMPETING_PROCESS_BE_SUPPRESSED??$ |
| A. | By using concentrated nitric and sulfuric acids instead of acetyl nitrate |
| B. | By carrying out the reaction at higher temperatures |
| C. | By carrying out the nitration in the presence of pyridine |
| D. | By using nitric acid instead of acetyl nitrate |
| Answer» D. By using nitric acid instead of acetyl nitrate | |
| 7. |
Which combination of reagents used in the indicated order with benzene will give m-nitropropylbenzene? |
| A. | HNO<sub>3</sub>/H<sub>2</sub>SO<sub>4</sub>, 2) CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>Cl/AlCl<sub>3</sub> |
| B. | CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>Cl/AlCl<sub>3</sub>, 2) HNO<sub>3</sub>/H<sub>2</sub>SO<sub>4</sub> |
| C. | CH<sub>3</sub>CH<sub>2</sub>COCl/AlCl<sub>3</sub>, 2) HNO<sub>3</sub>/H<sub>2</sub>SO<sub>4</sub>, 3) H<sub>2</sub>NNH<sub>2</sub>/NaOH |
| D. | HNO<sub>3</sub>/H<sub>2</sub>SO<sub>4</sub>, 2) CH<sub>3</sub>CH<sub>2</sub>COCl/AlCl<sub>3</sub>, 3) H<sub>2</sub>NNH<sub>2</sub>/NaOH |
| Answer» E. | |
| 8. |
Which of the following is not a natural occurring nitro compound? |
| A. | Chloramphenicol |
| B. | 2-Nitrophenol |
| C. | 3-Nitropropionic acid |
| D. | nitrobenzene |
| Answer» E. | |
| 9. |
What will be the product if 1,1-halonitroalkane undergoes nucleophilic aliphatic substitution reaction in presence of ethanol? |
| A. | 1,1-dinitro dimer |
| B. | 1,2-dinitro dimer |
| C. | 1.-nitro compound |
| D. | 2-nitrocompound |
| Answer» B. 1,2-dinitro dimer | |
| 10. |
In Ter Meer reaction, a method of preparation of nitro compound, which of the following used as reagent? |
| A. | HNO<sub>2</sub> |
| B. | HNO<sub>3</sub> |
| C. | NaNO<sub>2</sub> |
| D. | RX (alkyl halide) |
| Answer» D. RX (alkyl halide) | |
| 11. |
Which of the following is used as a reactant for the nitration of benzene to form nitrobenzene? |
| A. | HNO<sub>2</sub> |
| B. | HNO<sub>3</sub> |
| C. | Mixture of HNO<sub>2</sub> AND HNO<sub>3</sub> |
| D. | Mixture of HNO<sub>2</sub> and H<sub>2</sub>SO<sub>4</sub> |
| Answer» D. Mixture of HNO<sub>2</sub> and H<sub>2</sub>SO<sub>4</sub> | |