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. |
Which of the following reactions does not give benzaldehyde? |
| A. | Rosenmund reaction |
| B. | Etard reaction |
| C. | Gatterman-Koch reaction |
| D. | Friedel-Craft acylation reaction |
| Answer» E. | |
| 2. |
Identify the reagent for the conversion of but-2-ene to ethanal. |
| A. | O<sub>3</sub>/H<sub>2</sub>O-Zn dust |
| B. | H<sub>2</sub>O, H<sub>2</sub>SO<sub>4</sub>, HgSO<sub>4</sub> |
| C. | PCC |
| D. | DIBAL-H |
| Answer» B. H<sub>2</sub>O, H<sub>2</sub>SO<sub>4</sub>, HgSO<sub>4</sub> | |
| 3. |
Friedel-Crafts benzoylation of benzene gives ________ |
| A. | acetophenone |
| B. | propiophenone |
| C. | benzophenone |
| D. | no reaction |
| Answer» D. no reaction | |
| 4. |
What is formed after the hydrolysis of the product of the reaction between benzonitrile and methyl magnesium bromide in dry ether? |
| A. | Phenyl acetaldehyde |
| B. | Acetophenone |
| C. | 1-Phenylpropanone |
| D. | Benzaldehyde |
| Answer» C. 1-Phenylpropanone | |
| 5. |
Acetyl chloride reacts with _______ to give butan-2-one. |
| A. | cadmium chloride |
| B. | methyl magnesium chloride |
| C. | dimethyl cadmium |
| D. | diethyl cadmium |
| Answer» E. | |
| 6. |
Identify the reagent(s) for the conversion of chlorobenzene to 3-chlorobenzaldehyde. |
| A. | CrO<sub>3</sub> and (CH<sub>3</sub>CO)<sub>2</sub>O |
| B. | CrO<sub>2</sub>Cl<sub>2</sub>; H<sub>2</sub>O |
| C. | Cl<sub>2</sub>/hv; H<sub>2</sub>O |
| D. | CO, HCl and CuCl |
| Answer» E. | |
| 7. |
Benzaldehyde can be obtained from the hydrolysis of the product formed during side chain chlorination of toluene. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following compounds helps in reducing esters to aldehydes? |
| A. | BINAL-H |
| B. | DIBAL-H |
| C. | DIPT |
| D. | TBAF |
| Answer» C. DIPT | |
| 9. |
Which of the following is required in Stephen reaction? |
| A. | LiCl |
| B. | NiCl<sub>2</sub> |
| C. | SnCl<sub>2</sub> |
| D. | TiCl<sub>4</sub> |
| Answer» D. TiCl<sub>4</sub> | |
| 10. |
Which of the following carbonyl compounds can be prepared from Rosenmund reaction? |
| A. | Methanal |
| B. | Acetone |
| C. | Butanone |
| D. | Benzaldehyde |
| Answer» E. | |
| 11. |
What is the catalyst used in the hydrogenation of acetyl chloride to produce ethanal? |
| A. | Pt over BaSO<sub>4</sub> |
| B. | Pt over CuSO<sub>4</sub> |
| C. | Pd over BaSO<sub>4</sub> |
| D. | Pd over CuSO<sub>4</sub> |
| Answer» D. Pd over CuSO<sub>4</sub> | |
| 12. |
Conversion of propyne to acetone requires three important reagents. Identify which of the following is not one of the three? |
| A. | Water |
| B. | Zinc dust |
| C. | H<sub>2</sub>SO<sub>4</sub> |
| D. | HgSO<sub>4</sub> |
| Answer» C. H<sub>2</sub>SO<sub>4</sub> | |
| 13. |
Which of the following reactions can produce ketones? |
| A. | Oxidation of primary alcohols |
| B. | Dehydrogenation of primary alcohols |
| C. | Dehydrogenation of tertiary alcohols |
| D. | Oxidation of secondary alcohols |
| Answer» E. | |
| 14. |
Which of the following methods cannot produce aldehydes? |
| A. | Oxidation of primary alcohols |
| B. | Dehydrogenation of secondary alcohols |
| C. | Ozonolysis of alkenes |
| D. | Hydration of ethyne with acid |
| Answer» C. Ozonolysis of alkenes | |