MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
Which of the following cannot be used as reactant in preparation of aromatic ketones from diazonium salt? |
| A. | formaldoxime |
| B. | Acetaldoxime |
| C. | propionaldoxime |
| D. | Terpernes |
| Answer» E. | |
| 2. |
Aromatic ketones were synthesized from aromatic compounds via liquid phase oxidation at 60 C and 1 atm over vanadium containing which catalyst? |
| A. | MCM-41 |
| B. | MCM-48 |
| C. | ZSM-5 |
| D. | ZK-5 |
| Answer» B. MCM-48 | |
| 3. |
Formation of aromatic ketone forms from benzene by CH3COCl? |
| A. | Friedal craft alkylation |
| B. | Friedal craft dealkylation |
| C. | Friedal craft acylation |
| D. | Friedal craft hydroxyalkylation |
| Answer» D. Friedal craft hydroxyalkylation | |
| 4. |
What is the laboratory method for the formation of benzaldehyde? |
| A. | Gattermann Koch synthesis |
| B. | Etards reaction |
| C. | Stephan s reaction |
| D. | Oxidation of benzyl chloride |
| Answer» E. | |
| 5. |
Which of the following cannot be used in formation of benzaldehyde by Grignard reagent? |
| A. | HCN |
| B. | Carbon monoxide |
| C. | Ethyl format |
| D. | HNC |
| Answer» D. HNC | |
| 6. |
Ozonolysis of styrene will lead leads to formation of benzaldehyde along which compound? |
| A. | O<sub>2</sub> |
| B. | H<sub>2</sub>O<sub>2</sub> |
| C. | HCHO |
| D. | H<sub>2</sub>O<sub>2</sub> and HCHO |
| Answer» D. H<sub>2</sub>O<sub>2</sub> and HCHO | |
| 7. |
Partial reduction of phenyl cyanide with stannous chloride and passing dry HCl gas in ether solution followed by hydrolysis of the aldimine stannic chloride with water to form benzaldehyde is called as which of the following method of preparation of benzaldehyde? |
| A. | Gattermann Koch synthesis |
| B. | Etards reaction |
| C. | Stephan s reaction |
| D. | Gattermann reaction |
| Answer» D. Gattermann reaction | |
| 8. |
What reagents will be used in the preparation of benzaldehyde via Gattermann Koch synthesis? |
| A. | Carbon dioxide and HCl |
| B. | Carbon monoxide and HCl |
| C. | Oxygen and H<sub>2</sub>SO<sub>4</sub> |
| D. | Carbon monoxide and H<sub>2</sub>SO<sub>4</sub> |
| Answer» C. Oxygen and H<sub>2</sub>SO<sub>4</sub> | |
| 9. |
Which of the following is the not a method of preparation of benzaldehyde? |
| A. | Gattermann Koch synthesis |
| B. | Etards reaction |
| C. | Stephan s reaction |
| D. | Oxidation of secondary alcohol |
| Answer» E. | |
| 10. |
Which of the following is the commercial method of preparation of benzaldehyde? |
| A. | Oxidation of toluene |
| B. | Oxidation of benzyl chloride |
| C. | Oxidation of benzyl alcohol |
| D. | Etard reaction |
| Answer» D. Etard reaction | |
| 11. |
The oxidation of benzyl chloride with lead nitrate gives which of the following compound? |
| A. | Benzaldehyde |
| B. | Benzyl alcohol |
| C. | Benzoic acid |
| D. | p-chlorobenzaldehyde |
| Answer» B. Benzyl alcohol | |
| 12. |
Benzaldehyde can be prepared by oxidation of toluene by which of the following reagent? |
| A. | Acidic KMnO<sub>4</sub> |
| B. | K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub> |
| C. | CrO<sub>2</sub>Cl<sub>2</sub> |
| D. | basic KMnO<sub>4</sub> |
| Answer» D. basic KMnO<sub>4</sub> | |
| 13. |
The oxidation of toluene to benzaldehyde by chromyl chloride is called as which of the following? |
| A. | Cannizzaro reaction |
| B. | Wurtz reaction |
| C. | Etard reaction |
| D. | Reimer-Tiemann reaction |
| Answer» D. Reimer-Tiemann reaction | |