MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Identify ‘X’ in the following reaction. |
| A. | AgF |
| B. | Hg2F2 |
| C. | CoF2 |
| D. | SbF3 |
| Answer» C. CoF2 | |
| 2. |
The Finkelstein reaction can be used to prepare alkyl fluorides. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The Finkelstein reaction takes place in what medium? |
| A. | Concentrated HCl |
| B. | Concentrated H2SO4 |
| C. | Dry acetone |
| D. | Water |
| Answer» D. Water | |
| 4. |
Which of the following is incorrect with regard to the reaction between C2H4 and Cl2 in CCl4? |
| A. | It results in the formation of a vicinal dihalide |
| B. | It results in the breaking of the C-C double bond |
| C. | It results in the formation of a colourless compound |
| D. | It results in the discharge of a reddish-brown colour |
| Answer» E. | |
| 5. |
When propene reacts with HBr, two products are formed out of which one is predominates the other. Identify the minor product. |
| A. | 1-Bromopropane |
| B. | 2-Bromopropane |
| C. | 1-Bromobutane |
| D. | 2-Bromobutane |
| Answer» B. 2-Bromopropane | |
| 6. |
How many monohaloalkane isomers can be formed on the free radical bromination of (CH3)2CHCH2CH3? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 7. |
The following reaction to form haloalkanes is an example of which type of reaction?Propane + Cl2 (in the presence of UV light) = 1-Chloropropane + 2-Chloropropane |
| A. | Free radical substitution |
| B. | Halogen exchange |
| C. | Finkelstein reaction |
| D. | Swarts reaction |
| Answer» B. Halogen exchange | |
| 8. |
Iodoalkanes can be obtained by heating alcohols with potassium iodide in __________ |
| A. | hypophosphrus acid |
| B. | phosphorus acid |
| C. | phosphoric acid |
| D. | hypophosphoric acid |
| Answer» D. hypophosphoric acid | |
| 9. |
What do you get by heating a mixture of hexanol and concentrated aqueous hydrogen chloride? |
| A. | Cyclochlorohexane |
| B. | Chlorohexane |
| C. | Phosphorus acid |
| D. | No reaction |
| Answer» C. Phosphorus acid | |
| 10. |
When ethanol reacts with PCl5, it gives three products which include chloroethane and hydrochloric acid. What is the third product? |
| A. | Phosphorus acid |
| B. | Phosphoric acid |
| C. | Phosphorus trichloride |
| D. | Phosphoryl chloride |
| Answer» E. | |
| 11. |
The reaction of a primary alcohol with which of the following gives purely a haloalkane? |
| A. | Phosphorus trichloride |
| B. | Phosphorus pentachloride |
| C. | Thionyl chloride |
| D. | Sulphuryl chloride |
| Answer» D. Sulphuryl chloride | |
| 12. |
What is the catalyst in the reaction of a primary alcohol with HCl to obtain a chloroalkane? |
| A. | anhydrous ZnCl2 |
| B. | concentrated H2SO4 |
| C. | red phosphorous |
| D. | pyridine |
| Answer» B. concentrated H2SO4 | |
| 13. |
What is the correct order of reactivity of the following haloacids with a given alcohol? |
| A. | HCl > HBr > HI |
| B. | HI > HBr > HCl |
| C. | HBr > HCl > HI |
| D. | HI > HCl > HBr |
| Answer» C. HBr > HCl > HI | |
| 14. |
What is the correct order of reactivity of alcohols with a given haloacid? |
| A. | 1° > 2° > 3° |
| B. | 3° > 2° > 1° |
| C. | 1° > 3° > 2° |
| D. | 2° > 1° > 3° |
| Answer» C. 1° > 3° > 2° | |