MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
What will be the product for the given reaction? CH2 = CHC ≡ CH + HCl → ? vinylacetylene |
| A. | 2-chloro-1,3-dibutadiene |
| B. | 1,2-dichloro-1,3-dibutadiene |
| C. | 1-chloro-2,3-dibutadiene |
| D. | 3-chloro-1,2-dibutadiene |
| Answer» B. 1,2-dichloro-1,3-dibutadiene | |
| 2. |
What will be the product when addition of hydrogen chloride to vinyl chloride occurs? |
| A. | 1,1-dichloroethane |
| B. | 1,2-dichloroethane |
| C. | 1-chloroethane |
| D. | 1-chloro 2,2-dichloroethane |
| Answer» B. 1,2-dichloroethane | |
| 3. |
How can be a vinylic halide converted into Grignard reagent? |
| A. | Addition of base |
| B. | Addition of acid |
| C. | By adding magnesium |
| D. | Addition of diethyl ether |
| Answer» D. Addition of diethyl ether | |
| 4. |
Which of the following is considered as allylic carbon atom? |
| A. | 1 |
| B. | 3 |
| C. | 2 |
| D. | 4 |
| Answer» D. 4 | |
| 5. |
How many resonating structure of allylic carbocation is present? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 6. |
What will be the product when addition of hydrogen chloride to vinyl chloride occurs?$ |
| A. | 1,1-dichloroethane |
| B. | 1,2-dichloroethane |
| C. | 1-chloroethane |
| D. | 1-chloro 2,2-dichloroethane |
| Answer» B. 1,2-dichloroethane | |
| 7. |
How_can_be_a_vinylic_halide_converted_into_Grignard_reagent?$ |
| A. | Addition of base |
| B. | Addition of acid |
| C. | By adding magnesium |
| D. | Addition of diethyl ether |
| Answer» D. Addition of diethyl ether | |
| 8. |
What_will_be_the_product_for_the_given_reaction? |
| A. | |
| B. | |
| Answer» B. | |
| 9. |
Which of the following vinyl halide has industrial application? |
| A. | Vinyl fluoride |
| B. | Vinyl chloride |
| C. | Vinyl bromide |
| D. | Vinyl iodide |
| Answer» C. Vinyl bromide | |
| 10. |
Which of the following allylic halide has commercial usage? |
| A. | H<sub>2</sub>C = CH‚àíCH<sub>2</sub>Cl |
| B. | H<sub>2</sub>C = CH‚àíCH<sub>2</sub>Br |
| C. | H<sub>2</sub>C = CH‚àíCH<sub>2</sub>I |
| D. | H<sub>2</sub>C = CH‚àíCH<sub>2</sub>F |
| Answer» B. H<sub>2</sub>C = CH‚Äö√Ñ√∂‚àö‚Ć‚àö‚â†CH<sub>2</sub>Br | |
| 11. |
Which of the following statement is incorrect about allylic halide? |
| A. | The positions adjacent to alkene C=C often show decrement in reactivity |
| B. | SN1 reactions of allylic halides are possible |
| C. | Allylic bonds are often weaker and therefore more easily broken |
| D. | stability of the allylic radical can be utilized in the preparation of allylic halides |
| Answer» D. stability of the allylic radical can be utilized in the preparation of allylic halides | |