MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 14 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. |
Acetaldehyde reacts with C2H5MgCl the final product is which of the following? |
| A. | An aldehyde |
| B. | A ketone |
| C. | A primary alcohol |
| D. | A secondary alcohol |
| Answer» E. | |
| 2. |
If formaldehyde and KOH are heated, then we get which of the following compound? |
| A. | Acetylene |
| B. | Methane |
| C. | Methyl alcohol |
| D. | Ethyl formate |
| Answer» D. Ethyl formate | |
| 3. |
For C6H5CHO which of the following is incorrect? |
| A. | On oxidation it yields benzoic acid |
| B. | It is used in perfumery |
| C. | It is an aromatic aldehyde |
| D. | On reduction yields phenol |
| Answer» E. | |
| 4. |
During a reaction of Tollens test, the formation of mirror inside the tube is due to which of the following? |
| A. | silver ions |
| B. | silver atoms |
| C. | silver compounds |
| D. | silver nitrate |
| Answer» C. silver compounds | |
| 5. |
IF_FORMALDEHYDE_AND_KOH_ARE_HEATED,_THEN_WE_GET_WHICH_OF_THE_FOLLOWING_COMPOUND??$ |
| A. | Acetylene |
| B. | Methane |
| C. | Methyl alcohol |
| D. | Ethyl formate |
| Answer» D. Ethyl formate | |
| 6. |
Acetaldehyde_reacts_with_C2H5MgCl_the_final_product_is_which_of_the_following?$ |
| A. | An aldehyde |
| B. | A ketone |
| C. | A primary alcohol |
| D. | A secondary alcohol |
| Answer» E. | |
| 7. |
To distinguish between formaldehyde and acetaldehyde, we require which of the following reagent? |
| A. | Tollen’s reagent |
| B. | Fehling’s solution |
| C. | Schiff’s reagent |
| D. | Caustic soda solution |
| Answer» E. | |
| 8. |
What will be the product if aldehyde reacts with NaOH? |
| A. | Benzyl alcohol |
| B. | Benzoic alcohol |
| C. | Hydrobenzamide |
| D. | Cinnamic acid |
| Answer» B. Benzoic alcohol | |
| 9. |
Acetaldehyde cannot show which of the following test? |
| A. | Iodoform test |
| B. | Lucas test |
| C. | Benedict’s test |
| D. | Tollen’s test |
| Answer» C. Benedict‚Äö√Ñ√∂‚àö√ë‚àö¬•s test | |
| 10. |
Which of the following will not undergo aldol condensation? |
| A. | Acetaldehyde |
| B. | Propanaldehyde |
| C. | Benzaldehyde |
| D. | Trideuteroacetaldehyde |
| Answer» D. Trideuteroacetaldehyde | |
| 11. |
Which of the following compound will undergo self-aldol condensation in the presence of cold dilute alkali? |
| A. | C<sub>6</sub>H<sub>5</sub>CHO |
| B. | CH<sub>3</sub>CH<sub>2</sub>CHO |
| C. | CH≡C−CHO |
| D. | CH<sub>2</sub>=CH‚àíCHO |
| Answer» C. CH‚Äö√Ñ√∂‚àö¬¢¬¨‚àûC‚Äö√Ñ√∂‚àö‚Ć‚àö‚â†CHO | |
| 12. |
For C6H5CHO which of the following is incorrect? |
| A. | On oxidation it yields benzoic acid |
| B. | It is used in perfumery |
| C. | It is an aromatic aldehyde |
| D. | On reduction yields phenol |
| Answer» E. | |
| 13. |
Reduction of Aldehydes to hydrocarbon take place in the presence of which of the following? |
| A. | Zn amalgam and HCl acid |
| B. | Pd/BaSO<sub>4</sub> |
| C. | Anhydrous AlCl<sub>3</sub> |
| D. | Ni/Pt |
| Answer» B. Pd/BaSO<sub>4</sub> | |
| 14. |
During a reaction of Tollens test, the formation of mirror inside the tube is due to which of the following? |
| A. | silver ions |
| B. | silver atoms |
| C. | silver compounds |
| D. | silver nitrate |
| Answer» C. silver compounds | |