(a) Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified. Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO 3 . The oxidation of aldoses leads to the formation of aldaric acid.

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Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 28, Problem 28.23P

Interpretation Introduction

(a)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(b)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(c)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

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Students have asked these similar questions

Which aldoses are oxidized to optically inactive aldaric acids: (a) D-erythrose; (b) Dlyxose; (c) D-galactose?

Given the following structure of aldose, (a) how many chiral carbons are there? (b) is it a reducing sugar? and (c) is it an L or D sugar?

A D-aldopentose A is reduced to an optically active alditol. Upon Kiliani–Fischer synthesis, A is converted to two D-aldohexoses, B and C. B is oxidized to an optically inactive aldaric acid. C is oxidized to an optically active aldaric acid. What are the structures of A–C?

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 28, Problem 28.23P

Interpretation Introduction

(a)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(b)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(c)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 28, Problem 28.23P

Interpretation Introduction

(a)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(b)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(c)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Expert Solution & Answer

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 28, Problem 28.23P

Interpretation Introduction

(a)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(b)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(c)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Expert Solution & Answer

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Answer 5

Chapter 28, Problem 28.23P

Interpretation Introduction

(a)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(b)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Interpretation Introduction

(c)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Answer 6

Chapter 28, Problem 28.23P

Interpretation Introduction

(a)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Answer 7

Chapter 28, Problem 28.23P

Interpretation Introduction

(a)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Answer 8

Interpretation Introduction

(b)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Answer 9

Interpretation Introduction

(b)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Answer 10

Interpretation Introduction

(c)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Answer 11

Interpretation Introduction

(c)

Interpretation: The given aldose is oxidized to optically inactive aldaric acid or not is to be identified.

Concept introduction: The aldehyde group and primary alcohol of aldoses oxidizes to carboxyl groups on treatment with warm HNO3. The oxidation of aldoses leads to the formation of aldaric acid.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 28 - Prob. 28.1P Ch. 28 - Prob. 28.2P Ch. 28 - Label each stereogenic center as R or S. a. b. c....Ch. 28 - Convert the ball-and-stick model to a Fischer...Ch. 28 - Prob. 28.5P Ch. 28 - Prob. 28.6P Ch. 28 - Prob. 28.7P Ch. 28 - Prob. 28.8P Ch. 28 - Prob. 28.9P Ch. 28 - Prob. 28.10P

Solution Summary: The author explains that D-erythrose is oxidized to optically inactive aldaric acid.

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Chapter 28 Solutions