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. |
Phenol undergoes ionization to become more stable by reacting with which of the following chemical species? |
| A. | negative ions |
| B. | positive ions |
| C. | radicals |
| D. | neutral atoms |
| Answer» B. positive ions | |
| 2. |
Bakelite is formed when phenol react with which of the following reactant? |
| A. | Formaldehyde |
| B. | Hydrogen |
| C. | Nitric acid |
| D. | Sulphuric acid |
| Answer» B. Hydrogen | |
| 3. |
Phenolphthalein is obtained by heating phenol with conc. H2SO4 and which of the following reactant? |
| A. | Benzyl alcohol |
| B. | Benzene |
| C. | Benzoic acid |
| D. | Phthalic anhydride |
| Answer» E. | |
| 4. |
BAKELITE_IS_FORMED_WHEN_PHENOL_REACT_WITH_WHICH_OF_THE_FOLLOWING_REACTANT??$ |
| A. | Formaldehyde |
| B. | Hydrogen |
| C. | Nitric acid |
| D. | Sulphuric acid |
| Answer» B. Hydrogen | |
| 5. |
Phenol_undergoes_ionization_to_become_more_stable_by_reacting_with_which_of_the_following_chemical_species?$ |
| A. | negative ions |
| B. | positive ions |
| C. | radicals |
| D. | neutral atoms |
| Answer» B. positive ions | |
| 6. |
Picric acid is formed when phenol react with which of the following reactant? |
| A. | Formaldehyde |
| B. | Hydrogen |
| C. | Nitric acid |
| D. | Hydrochloric acid |
| Answer» D. Hydrochloric acid | |
| 7. |
What is the major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide? |
| A. | Benzoic acid |
| B. | Salicyladehyde |
| C. | Salicylic acid |
| D. | Phthalic acid |
| Answer» D. Phthalic acid | |
| 8. |
Which of the following regents may be used to distinguish between phenol and benzoic acid? |
| A. | Aqueous NaOH |
| B. | Tollen’s reagent |
| C. | Molisch reagent |
| D. | Neutral FeCl<sub>3</sub> |
| Answer» E. | |
| 9. |
Bromine reacts with phenol and decolorize orange color and turns it to which of the colored precipitate? |
| A. | white precipitate |
| B. | pink precipitate |
| C. | blue precipitate |
| D. | black precipitate |
| Answer» B. pink precipitate | |
| 10. |
Phenol reacts with bromine in carbon disulphate at low temperature to give which of the following product? |
| A. | m-bromophenol |
| B. | o-and p-bromophenol |
| C. | p-bromophenol |
| D. | 2,4,6-tribromophenol |
| Answer» C. p-bromophenol | |
| 11. |
When phenol is treated with excess of bromine water, it gives which of the following product? |
| A. | m-bromophenol |
| B. | o-and p-bromophenol |
| C. | 2,4-dibromophenol |
| D. | 2,4,6-tribromophenol |
| Answer» E. | |
| 12. |
Salicylaldehyde can be prepared from which of the following reactants? |
| A. | Phenol and chloroform |
| B. | Phenol, chloroform and sodium hydroxide |
| C. | Phenol, carbon tetrachloride and NaOH |
| D. | Phenol, carbon tetrachloride |
| Answer» C. Phenol, carbon tetrachloride and NaOH | |
| 13. |
Phenolphthalein is obtained by heating phenol with conc. H2SO4 and which of the following reactant? |
| A. | Benzyl alcohol |
| B. | Benzene |
| C. | Benzoic acid |
| D. | Phthalic anhydride |
| Answer» E. | |