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. |
The conversion of acetophenone to acetanilide is best accomplished by using which reaction? |
| A. | Backmann rearrangement |
| B. | Curtius rearrangement |
| C. | Lossen rearrangement |
| D. | Hofmann rearrangement |
| Answer» B. Curtius rearrangement | |
| 2. |
Benzophenone does not react with which of the following compound? |
| A. | RNH2 |
| B. | SO3 |
| C. | NaOH |
| D. | Na2CO3 |
| Answer» E. | |
| 3. |
The product(s) obtained via oxymercuration (HgSO4+H2SO4) of 1-butyne would be what? |
| A. | CH3CH2COCH3 |
| B. | CH3CH2CH2CHO |
| C. | CH3CH2CHO + HCHO |
| D. | CH3CH2COOH + HCOOH |
| Answer» B. CH3CH2CH2CHO | |
| 4. |
Which of the following statements regarding chemical properties of acetophenone are wrong? |
| A. | I and II |
| B. | II and IV |
| C. | III and IV |
| D. | I and IIIView Answer |
| Answer» D. I and IIIView Answer | |
| 5. |
Which of the following reaction is not shown by ketones? |
| A. | reaction with HCN |
| B. | reaction with NaHSO3 |
| C. | reaction with 2,4-Dinitrophenyl hydrazine |
| D. | reaction with Fehling solution |
| Answer» E. | |
| 6. |
BENZOPHENONE_DOES_NOT_REACT_WITH_WHICH_OF_THE_FOLLOWING_COMPOUND??$ |
| A. | RNH<sub>2</sub> |
| B. | SO<sub>3</sub> |
| C. | NaOH |
| D. | Na<sub>2</sub>CO<sub>3</sub> |
| Answer» E. | |
| 7. |
The_conversion_of_acetophenone_to_acetanilide_is_best_accomplished_by_using_which_reaction?$ |
| A. | Backmann rearrangement |
| B. | Curtius rearrangement |
| C. | Lossen rearrangement |
| D. | Hofmann rearrangement |
| Answer» B. Curtius rearrangement | |
| 8. |
The product(s) obtained via oxymercuration (HgSO4+H2SO4) of 1-butyne would be what? |
| A. | CH<sub>3</sub>CH<sub>2</sub>COCH<sub>3</sub> |
| B. | CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CHO |
| C. | CH<sub>3</sub>CH<sub>2</sub>CHO + HCHO |
| D. | CH<sub>3</sub>CH<sub>2</sub>COOH + HCOOH |
| Answer» B. CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CHO | |
| 9. |
Which of the following reactions give benzophenone? |
| A. | 2C<sub>6</sub>H<sub>6</sub> + CCl<sub>4</sub> + AlCl<sub>3</sub> + H<sub>2</sub>O‚Üí |
| B. | C<sub>6</sub>H<sub>6</sub> + C<sub>6</sub>H<sub>5</sub>COCl + AlCl<sub>3</sub>‚Üí |
| C. | o‚àíCH<sub>3</sub>C<sub>6</sub>H<sub>4</sub>COC<sub>6</sub>H<sub>5</sub> + Heat‚Üí |
| D. | o‚àíHOOC‚àíC<sub>6</sub>H<sub>4</sub>‚àíCOC<sub>6</sub>H<sub>5</sub> + Cu<sub>2</sub>60oC‚Üí |
| Answer» C. o‚Äö√Ñ√∂‚àö‚Ć‚àö‚â†CH<sub>3</sub>C<sub>6</sub>H<sub>4</sub>COC<sub>6</sub>H<sub>5</sub> + Heat‚Äö√Ñ√∂‚àö√∫‚àö‚↠| |
| 10. |
Which of the following will fail to react with potassium dichromate and dilute sulphuric acid? |
| A. | Ethyl alcohol (ethanol) |
| B. | Acetaldehyde (ethanal) |
| C. | Secondary propyl alcohol (2-propanol) |
| D. | Acetone (propanone) |
| Answer» E. | |
| 11. |
Which of the following has most acidic hydrogen? |
| A. | 3-Hexaone |
| B. | 2,4- Hexanedione |
| C. | 2, 3-Hexanedione |
| D. | 2, 5-Hexanedione |
| Answer» C. 2, 3-Hexanedione | |
| 12. |
Acetone reacts with HCN to form a cyanohydrin. It is an example of which type of reaction? |
| A. | electrophilic addition |
| B. | electrophilic substitution |
| C. | nucleophilic addition |
| D. | nucleophilic substitution |
| Answer» D. nucleophilic substitution | |
| 13. |
Which of the following reaction is not shown by ketones? |
| A. | reaction with HCN |
| B. | reaction with NaHSO<sub>3</sub> |
| C. | reaction with 2,4-Dinitrophenyl hydrazine |
| D. | reaction with Fehling solution |
| Answer» E. | |