MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Toluene and phenol have similar boiling points. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Propan-1-ol boils at a higher temperature than propan-2-ol. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following has the highest boiling point? |
| A. | Propan-1-ol |
| B. | Butan-1-ol |
| C. | Butan-2-ol |
| D. | Pentan-1-ol |
| Answer» E. | |
| 4. |
If the boiling point of methoxymethane is 248K, predict the boiling point of ethanol. |
| A. | 231K |
| B. | 248K |
| C. | 351K |
| D. | 455K |
| Answer» D. 455K | |
| 5. |
Four compounds A, B, C and D having similar molecular masses were tested for their boiling points. It was found that compound C has the highest boiling point of all four. What is the compound C most likely to be? |
| A. | Hydrocarbon |
| B. | Haloalkane |
| C. | Alcohol |
| D. | Ether |
| Answer» D. Ether | |
| 6. |
What is the correct order of boiling points of alcohols having the same number of carbon atoms? |
| A. | 1°>2°>3° |
| B. | 3°>2°>1° |
| C. | 3°>1°>2° |
| D. | 2°>1°>3° |
| Answer» B. 3°>2°>1° | |
| 7. |
Phenols are not soluble in which of the following? |
| A. | Water |
| B. | Alcohol |
| C. | Ether |
| D. | Sodium hydroxide |
| Answer» B. Alcohol | |
| 8. |
Phenol is approximately how much times acidic than ethanol? |
| A. | 10 |
| B. | 25 |
| C. | 100 |
| D. | million |
| Answer» E. | |
| 9. |
Which of the following is necessary for the bromination of phenol? |
| A. | CS2 |
| B. | FeBr3 |
| C. | AlCl3 |
| D. | BF3 |
| Answer» B. FeBr3 | |
| 10. |
Which of the following is the least soluble in water? |
| A. | n-Butyl alcohol |
| B. | n-Pentyl alcohol |
| C. | n-Hexyl alcohol |
| D. | n-Heptyl alcohol |
| Answer» E. | |
| 11. |
Which of the following isomeric alcohols is the most soluble in water? |
| A. | n-Butyl alcohol |
| B. | Isobutyl alcohol |
| C. | sec-Butyl alcohol |
| D. | tert-Butyl alcohol |
| Answer» E. | |
| 12. |
Identify the compound ‘X’. |
| A. | Oleum |
| B. | Sulphuric acid |
| C. | Nitrous acid |
| D. | Sodium sulphate |
| Answer» B. Sulphuric acid | |
| 13. |
How is carbolic acid prepared from benzene diazonium chloride? |
| A. | Treating it with nitrous acid at 275K |
| B. | Preparing an aqueous solution and warming it |
| C. | Treating it with sodium hydroxide |
| D. | Freezing it |
| Answer» C. Treating it with sodium hydroxide | |
| 14. |
Cumene hydroperoxide on hydrolysis with dilute H2SO4 gives _________ |
| A. | alcohol and phenol |
| B. | only phenol |
| C. | phenol and acetone |
| D. | alcohol and acetone |
| Answer» D. alcohol and acetone | |
| 15. |
Phenol can be obtained by ________ of sodium phenoxide. |
| A. | acidification |
| B. | oxidation |
| C. | sulphonation |
| D. | hydrolysis |
| Answer» B. oxidation | |