Exam (elaborations)
Chapter 21 - Enols and Enolates (Test Bank)
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Organic Chemistry 10th Edition by Francis Carey - Test Bank
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1. How many a-hydrogens does 2-hexanone have?A. 3
B. 4
C. 5
D. 6
Accessibility: Keyboard Navigation
Bloom's Level: 2. Understand
Chapter: 21
Difficulty: Easy
Gradable: automatic
Section: 21.01
Subtopic: IUPAC nomenclature of aldehydes and ketones
Subtopic: Physical properties of aldehydes and ketones
Subtopic: Reactions of aldehydes and ketones acting as nucleophiles
Topic: Aldehydes and Ketones
2. Which one of the following cannot form an enolate anion?
A. 2,2-dimethylbutanal
B. 2-ethylbutanal
C. 2,3-dimethylbutanal
D. 3,3-dimethylbutanal
Accessibility: Keyboard Navigation
Bloom's Level: 2. Understand
Chapter: 21
Difficulty: Medium
Gradable: automatic
Section: 21.02
Subtopic: IUPAC nomenclature of aldehydes and ketones
Subtopic: Physical properties of aldehydes and ketones
Subtopic: Reactions of aldehydes and ketones acting as nucleophiles
Topic: Aldehydes and Ketones
21-1
Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of
McGraw-Hill Education.
,3. Which of the following have an enol form?
I. benzaldehyde, C6H5CHO
II. 2,2-dimethylpropanal, (CH3)3CCHO
III. 2-chloropropanal, CH3CHClCHO
A. only I
B. only II
C. only III
D. all of them have an enol form
Accessibility: Keyboard Navigation
Bloom's Level: 2. Understand
Chapter: 21
Difficulty: Medium
Gradable: automatic
Section: 21.01
Subtopic: Physical properties of aldehydes and ketones
Subtopic: Reactions of aldehydes and ketones acting as nucleophiles
Topic: Aldehydes and Ketones
4. Which one of the following has two different enol forms?
A. cyclohexanone
B. 2,2-dimethylcyclohexanone
C. 3,3-dimethylcyclohexanone
D. 4,4-dimethylcyclohexanone
Accessibility: Keyboard Navigation
Bloom's Level: 2. Understand
Chapter: 21
Difficulty: Medium
Gradable: automatic
Section: 21.01
Subtopic: IUPAC nomenclature of aldehydes and ketones
Subtopic: Physical properties of aldehydes and ketones
Subtopic: Reactions of aldehydes and ketones acting as nucleophiles
Topic: Aldehydes and Ketones
21-2
Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of
McGraw-Hill Education.
,5. How many alpha hydrogens are there on 2,4-dimethyl-3-pentanone?
A. two
B. three
C. four
D. six
Accessibility: Keyboard Navigation
Bloom's Level: 2. Understand
Chapter: 21
Difficulty: Easy
Gradable: automatic
Section: 21.01
Subtopic: IUPAC nomenclature of aldehydes and ketones
Subtopic: Physical properties of aldehydes and ketones
Subtopic: Reactions of aldehydes and ketones acting as nucleophiles
Topic: Aldehydes and Ketones
6. Identify the most acidic hydrogen in the following compound.
A. 1
B. 2
C. 3
D. 4
Bloom's Level: 4. Analyze
Chapter: 21
Difficulty: Medium
Gradable: automatic
Section: 21.02
Subtopic: Acid strength of functional groups
Subtopic: Factors affecting acid strength
Topic: Acids and Bases
21-3
Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of
McGraw-Hill Education.
, 7. What is the product of the reaction below?
A. A
B. B
C. C
D. D
Bloom's Level: 3. Apply
Chapter: 21
Difficulty: Medium
Gradable: automatic
Section: 21.07
Subtopic: Reactions of aldehydes and ketones acting as nucleophiles
Topic: Aldehydes and Ketones
8. Arrange the following compounds in order of decreasing acidity.
A. I > II > III
B. II > III > I
C. III > II > I
D. III > I > II
Bloom's Level: 4. Analyze
Chapter: 21
Difficulty: Medium
Gradable: automatic
Section: 21.02
Subtopic: Acid strength of functional groups
Subtopic: Factors affecting acid strength
Topic: Acids and Bases
21-4
Copyright © 2016 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of
McGraw-Hill Education.
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