MCQOPTIONS
Saved Bookmarks
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. |
Phenol is obtained by heating aqueous solution of which of the following? |
| A. | Aniline |
| B. | Benzene diazonium chloride |
| C. | Benzoic acid |
| D. | Benzyl alcohol |
| Answer» C. Benzoic acid | |
| 2. |
Which of the following is not a method for preparation of phenol? |
| A. | Dows process |
| B. | From diazonium salt |
| C. | By decarboxylation of salicylic acid |
| D. | By the decarboxylation of sodium benzoate |
| Answer» E. | |
| 3. |
What is the reactant ‘x’ and ‘y’ that will react with benzene to give phenol? |
| A. | X is Oleum and y is molten sodium hydroxide followed by H+ |
| B. | X is Oleum and y is HCl |
| C. | X is Oleum and y is NH3 |
| D. | X is Oleum and y is water |
| Answer» B. X is Oleum and y is HCl | |
| 4. |
What will be the product ‘a’ in the given reation? |
| A. | Enolate form |
| B. | Benzene diazonium chloride |
| C. | Benzene |
| D. | Chlorobenzene |
| Answer» C. Benzene | |
| 5. |
What is the reagent which will react with cumene to give phenol? |
| A. | Oxygen |
| B. | Hydrogen |
| C. | Nitrogen |
| D. | Ozone |
| Answer» B. Hydrogen | |
| 6. |
PHENOL_IS_OBTAINED_BY_HEATING_AQUEOUS_SOLUTION_OF_WHICH_OF_THE_FOLLOWING??$ |
| A. | Aniline |
| B. | Benzene diazonium chloride |
| C. | Benzoic acid |
| D. | Benzyl alcohol |
| Answer» C. Benzoic acid | |
| 7. |
WHICH_OF_THE_FOLLOWING_IS_NOT_A_METHOD_FOR_PREPARATION_OF_PHENOL??$ |
| A. | Dows process |
| B. | From diazonium salt |
| C. | By decarboxylation of salicylic acid |
| D. | By the decarboxylation of sodium benzoate |
| Answer» E. | |
| 8. |
What is the reactant ‘x’ and ‘y’ that will react with benzene to give phenol?# |
| A. | X is Oleum and y is molten sodium hydroxide followed by H<sup>+</sup> |
| B. | X is Oleum and y is HCl |
| C. | X is Oleum and y is NH<sub>3</sub> |
| D. | X is Oleum and y is water |
| Answer» B. X is Oleum and y is HCl | |
| 9. |
What is the reagent which will react with cumene to give phenol? |
| A. | Oxygen |
| B. | Hydrogen |
| C. | Nitrogen |
| D. | Ozone |
| Answer» B. Hydrogen | |
| 10. |
Reaction of aqueous sodium hydroxide on chlorobenzene gives which of the following products? |
| A. | o-chlorophenol |
| B. | o-chlorophenol |
| C. | phenol |
| D. | no reaction |
| Answer» D. no reaction | |
| 11. |
What is the commercial method of preparation of phenol? |
| A. | Dows process |
| B. | From diazonium salt |
| C. | By decarboxylation of salicylic acid |
| D. | Hock method |
| Answer» E. | |
| 12. |
Sodium benzene sulphonate reacts with NaOH and then on acidic hydrolysis, it gives which of the following compound? |
| A. | Phenol |
| B. | Benzoic acid |
| C. | Benzene |
| D. | Disodium benzaldehyde |
| Answer» B. Benzoic acid | |
| 13. |
On heating aqueous solution of benzene diazonium chloride, which of the following is formed? |
| A. | benzene |
| B. | chlorobenzene |
| C. | phenol |
| D. | aniline |
| Answer» D. aniline | |