MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which enol form of the following dicarbonyl compound is predominant at equilibrium? |
| A. | a) |
| B. | b) |
| C. | c) |
| D. | d) |
| Answer» C. c) | |
| 2. |
A malonic ester synthesis of a carboxylic acid proceeds by alkylation of the enolate of the malonic ester followed by ester hydrolysis and decarboxylation of the β-dicarboxylic acid. Which of the following carboxylic acids is difficult to prepare by this method? |
| A. | PhCH2CH2CO2H |
| B. | (CH3)2CHO2H |
| C. | PhCH2CO2H |
| D. | d) |
| Answer» D. d) | |
| 3. |
An acetoacetic ester synthesis of a ketone proceeds by alkylation of the enolate of the acetoacetic ester followed by ester hydrolysis and decarboxylation of the β-ketoacid. Which of the following methyl ketones is difficult to prepare by this method? |
| A. | a) |
| B. | b) |
| C. | c) |
| D. | d) |
| Answer» B. b) | |