Reducing sugar property of lactose should be identified. Concept introduction: For the carbohydrates, Anomeric position is carried by an OH group for Hemiacetals . Anomeric position is carried by an alkoxy group for acetals . Hemiacetal sugars are in equilibrium with their open chain form. Acetal sugars are not in equilibrium with their open chain form. Reducing sugar: Sugars that contain aldehyde or a free ketone groups that are oxidized to carboxylic acids are classified as reducing sugars. So, the open chain form of sugars can reduce certain oxidizing agents (Tollens’, Fehling’s and Benedict’s) and become carboxylic acids.

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Answer 1

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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 24.7, Problem 5LTS

Interpretation Introduction

Interpretation:

Reducing sugar property of lactose should be identified.

Concept introduction:

For the carbohydrates,

Anomeric position is carried by an OH group for Hemiacetals.

Anomeric position is carried by an alkoxy group for acetals.

Hemiacetal sugars are in equilibrium with their open chain form.

Acetal sugars are not in equilibrium with their open chain form.

Reducing sugar: Sugars that contain aldehyde or a free ketone groups that are oxidized to carboxylic acids are classified as reducing sugars. So, the open chain form of sugars can reduce certain oxidizing agents (Tollens’, Fehling’s and Benedict’s) and become carboxylic acids.

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Answer 2

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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 24.7, Problem 5LTS

Interpretation Introduction

Interpretation:

Reducing sugar property of lactose should be identified.

Concept introduction:

For the carbohydrates,

Anomeric position is carried by an OH group for Hemiacetals.

Anomeric position is carried by an alkoxy group for acetals.

Hemiacetal sugars are in equilibrium with their open chain form.

Acetal sugars are not in equilibrium with their open chain form.

Reducing sugar: Sugars that contain aldehyde or a free ketone groups that are oxidized to carboxylic acids are classified as reducing sugars. So, the open chain form of sugars can reduce certain oxidizing agents (Tollens’, Fehling’s and Benedict’s) and become carboxylic acids.

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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 24.7, Problem 5LTS

Interpretation Introduction

Interpretation:

Reducing sugar property of lactose should be identified.

Concept introduction:

For the carbohydrates,

Anomeric position is carried by an OH group for Hemiacetals.

Anomeric position is carried by an alkoxy group for acetals.

Hemiacetal sugars are in equilibrium with their open chain form.

Acetal sugars are not in equilibrium with their open chain form.

Reducing sugar: Sugars that contain aldehyde or a free ketone groups that are oxidized to carboxylic acids are classified as reducing sugars. So, the open chain form of sugars can reduce certain oxidizing agents (Tollens’, Fehling’s and Benedict’s) and become carboxylic acids.

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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 24.7, Problem 5LTS

Interpretation Introduction