MCQOPTIONS
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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. |
Propan-2-ol undergoes acidic dehydration relatively at a lower temperature than propan-1-ol. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What is the correct order of reactivity of alcohols toward reactions involving cleavage of C-O bond? |
| A. | 1 >2 >3 |
| B. | 3 >2 >1 |
| C. | 1 >3 >2 |
| D. | 3 >1 >2 |
| Answer» C. 1 >3 >2 | |
| 3. |
Aspirin is produced from the reaction between salicylic acid and which compound? |
| A. | Acetyl chloride |
| B. | Acetic anhydride |
| C. | Phenyl acetate |
| D. | Benzoyl chloride |
| Answer» C. Phenyl acetate | |
| 4. |
What is the catalyst used in the acetylation of alcohols? |
| A. | Palladium |
| B. | Hydrogen peroxide |
| C. | Pyridine |
| D. | Aluminium chloride |
| Answer» D. Aluminium chloride | |
| 5. |
Identify the products of the following reaction:Methyl alcohol + Ethyl magnesium bromide = ? |
| A. | CH<sub>4</sub> and CH<sub>3</sub>OMgBr |
| B. | CH<sub>4</sub> and CH<sub>3</sub>CH<sub>2</sub>OMgBr |
| C. | C<sub>2</sub>H<sub>6</sub> and CH<sub>3</sub>OMgBr |
| D. | C<sub>2</sub>H<sub>6</sub> and CH<sub>3</sub>CH<sub>2</sub>OMgBr |
| Answer» D. C<sub>2</sub>H<sub>6</sub> and CH<sub>3</sub>CH<sub>2</sub>OMgBr | |
| 6. |
Which of the following alcohols is the most reactive towards esterification reaction? |
| A. | CH<sub>3</sub>OH |
| B. | CH<sub>3</sub>CH<sub>2</sub>OH |
| C. | (CH<sub>3</sub>)<sub>2</sub>CHOH |
| D. | (CH<sub>3</sub>)<sub>3</sub>COH |
| Answer» B. CH<sub>3</sub>CH<sub>2</sub>OH | |
| 7. |
What is the role of concentrated H2SO4 in the reaction between alcohol and carboxylic acid? |
| A. | Deprotonating agent |
| B. | Dehydrating agent |
| C. | Reducing agent |
| D. | Nucleophile |
| Answer» C. Reducing agent | |
| 8. |
Which of the following phenols is the most acidic? |
| A. | o-Cresol |
| B. | m-Cresol |
| C. | o-Nitrophenol |
| D. | m-Nitrophenol |
| Answer» D. m-Nitrophenol | |
| 9. |
Which of the following compounds is the best proton acceptor? |
| A. | Ethanol |
| B. | Phenol |
| C. | p-Cresol |
| D. | p-Nitrophenol |
| Answer» B. Phenol | |
| 10. |
Phenols are stronger acids than alcohols. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Water is a ______ than alcohol. |
| A. | better proton acceptor |
| B. | stronger base |
| C. | weaker acid |
| D. | better proton donor |
| Answer» E. | |
| 12. |
What is the correct relation between acidic strength of primary, secondary and tertiary alcohols? |
| A. | 1 >2 >3 |
| B. | 1 <2 <3 |
| C. | 1 =2 =3 |
| D. | 1 >3 >2 |
| Answer» B. 1 <2 <3 | |
| 13. |
Alcohols and phenols are ________ |
| A. | Lewis acids |
| B. | Lewis bases |
| C. | Bronsted acids |
| D. | Bronsted bases |
| Answer» D. Bronsted bases | |
| 14. |
When the bond between O and H of the hydroxyl group is broken, alcohols react as _________ |
| A. | nucleophiles |
| B. | electrophile |
| C. | protonated molecules |
| D. | electron seeking compounds |
| Answer» B. electrophile | |