MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
What will be the reagent used for the completion of the following reaction? |
| A. | Concentrated acid |
| B. | Dilute acid |
| C. | Concentrated base |
| D. | Dilute base |
| Answer» C. Concentrated base | |
| 2. |
What is the name of the following reaction? |
| A. | Gattermann reaction |
| B. | Riemer tiemann reaction |
| C. | Friedal craft reaction |
| D. | Blanc’s chloromethylation |
| Answer» C. Friedal craft reaction | |
| 3. |
What is the product when pyrrole reacts with Br2 in ethanol? |
| A. | 2,3-dibromopyrrole |
| B. | 2,3,4,5-tetrabromopyrrole |
| C. | 2,5-dibromopyrrole |
| D. | 3,4-dibromopyrrole |
| Answer» C. 2,5-dibromopyrrole | |
| 4. |
What is the product when thiophene reacts with Br2 in benzene? |
| A. | 2-bromothiophene |
| B. | 3-bromothiophene |
| C. | 2,5-dibromothiophene |
| D. | 3,4-dibromothiophene |
| Answer» D. 3,4-dibromothiophene | |
| 5. |
What is the reactivity order in the following five membered heterocyclic compounds? |
| A. | Pyrrole |
| B. | Furan |
| C. | Thiophene |
| D. | Pyridine |
| Answer» B. Furan | |
| 6. |
Five membered rings come under which category of heterocycle classification on the basis of chemical behavior? |
| A. | -excessive heterocycle |
| B. | -deficient heterocycle |
| C. | -equivalent heterocycle |
| D. | Can’t say about the five membered rings |
| Answer» B. -deficient heterocycle | |
| 7. |
Which of the following five membered rings is most resonance stabilized? |
| A. | Furan |
| B. | Thiophene |
| C. | Pyrrole |
| D. | Pyridine |
| Answer» C. Pyrrole | |
| 8. |
Which of the following is a not a five membered ring? |
| A. | Pyridine |
| B. | Pyrrole |
| C. | Furan |
| D. | Thiophene |
| Answer» B. Pyrrole | |
| 9. |
Which of the following is not true about the five membered rings? |
| A. | Five membered rings are more stable than 4 membered rings |
| B. | Five membered rings are more stable than 6 membered rings |
| C. | Five membered rings are more stable than 7 membered rings |
| D. | Five membered rings are more stable than 8 membered rings |
| Answer» C. Five membered rings are more stable than 7 membered rings | |