General, Organic, & Biological Chemistry
General, Organic, & Biological Chemistry
3rd Edition
ISBN: 9780073511245
Author: Janice Gorzynski Smith Dr.
Publisher: McGraw-Hill Education
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Concept explainers

Carbohydrates
Carbohydrates are the organic compounds that are obtained in foods and living matters in the shape of sugars, cellulose, and starch. The general formula of carbohydrates is Cn(H2O)2. The ratio of H and O present in carbohydrates is identical to water.
Starch
Starch is a polysaccharide carbohydrate that belongs to the category of polysaccharide carbohydrates.
Mutarotation
The rotation of a particular structure of the chiral compound because of the epimerization is called mutarotation. It is the repercussion of the ring chain tautomerism. In terms of glucose, this can be defined as the modification in the equilibrium of th…
L Sugar
A chemical compound that is represented with a molecular formula C6H12O6 is called L-(-) sugar. At the carbon’s 5th position, the hydroxyl group is placed to the compound’s left and therefore the sugar is represented as L(-)-sugar. It is capable of rotat…
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Chapter 20, Problem 20.87CP
Interpretation Introduction

Interpretation:

The two products formed needs to be determined, when fructose is reduced and the products should be labeled as stereoisomers, constitutional isomers or anomers.

Concept Introduction:

When an aldose sugar is treated with H2 in the presence of Pd catalyst, the carbonyl group is reduced to primary alcohol. This alcohol is known as alditol. Likewise, 2-ketohexoses also can be reduced by reacting with H2 in the presence of Pd catalyst. The H2 molecule is added across the C=O double bond, producing a secondary alcohol.

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In much the same way that aldoses are reduced with H 2 and Pd, 2-ketohexoses are also reduced. One difference occurs, however, in that two products are formed on reduction of 2-ketohexoses. Draw the two products formed when fructose (Section 20.2C) is reduced, and label the products as stereoisomers, constitutional isomers, or anomers. Explain your choice.
Question 21 Match the structures with the description NH NH CHO CH HO CH, HO HỌ CH, NICH H. ocit, CH, он он HO но- HO HO он CH2 OH >

Chapter 20 Solutions

General, Organic, & Biological Chemistry

Ch. 20.1 - Label the hemiacetal carbonthe carbon bonded to...Ch. 20.1 - Prob. 20.2PCh. 20.1 - Prob. 20.3PCh. 20.1 - Prob. 20.4PCh. 20.1 - Prob. 20.5PCh. 20.2 - Prob. 20.6PCh. 20.2 - Prob. 20.7PCh. 20.2 - Prob. 20.8PCh. 20.2 - Prob. 20.9PCh. 20.2 - Prob. 20.10P
Ch. 20.3 - Prob. 20.11PCh. 20.3 - Prob. 20.12PCh. 20.4 - Prob. 20.13PCh. 20.4 - Prob. 20.14PCh. 20.4 - Prob. 20.15PCh. 20.4 - Prob. 20.16PCh. 20.4 - Prob. 20.17PCh. 20.4 - Prob. 20.18PCh. 20.5 - Lactose contains both an acetal and a hemiacetal....Ch. 20.5 - Prob. 20.20PCh. 20.5 - Prob. 20.21PCh. 20.6 - Prob. 20.22PCh. 20.6 - Prob. 20.23PCh. 20.7 - Prob. 20.24PCh. 20.7 - Prob. 20.25PCh. 20.8 - Prob. 20.26PCh. 20 - Prob. 20.27PCh. 20 - Prob. 20.28PCh. 20 - Prob. 20.29PCh. 20 - Prob. 20.30PCh. 20 - Prob. 20.31PCh. 20 - Prob. 20.32PCh. 20 - Prob. 20.33PCh. 20 - Prob. 20.34PCh. 20 - Prob. 20.35PCh. 20 - Prob. 20.36PCh. 20 - Prob. 20.37PCh. 20 - Prob. 20.38PCh. 20 - Prob. 20.39PCh. 20 - Prob. 20.40PCh. 20 - Prob. 20.41PCh. 20 - Prob. 20.42PCh. 20 - Prob. 20.43PCh. 20 - Prob. 20.44PCh. 20 - Prob. 20.45PCh. 20 - Prob. 20.46PCh. 20 - Prob. 20.47PCh. 20 - Prob. 20.48PCh. 20 - Prob. 20.49PCh. 20 - Prob. 20.50PCh. 20 - Prob. 20.51PCh. 20 - Prob. 20.52PCh. 20 - Prob. 20.53PCh. 20 - Prob. 20.54PCh. 20 - Prob. 20.55PCh. 20 - Prob. 20.56PCh. 20 - Prob. 20.57PCh. 20 - Prob. 20.58PCh. 20 - Prob. 20.59PCh. 20 - Prob. 20.60PCh. 20 - Prob. 20.61PCh. 20 - Prob. 20.62PCh. 20 - Prob. 20.63PCh. 20 - Prob. 20.64PCh. 20 - Prob. 20.65PCh. 20 - Prob. 20.66PCh. 20 - Prob. 20.67PCh. 20 - Prob. 20.68PCh. 20 - Prob. 20.69PCh. 20 - Prob. 20.70PCh. 20 - Prob. 20.71PCh. 20 - Prob. 20.72PCh. 20 - Prob. 20.73PCh. 20 - Prob. 20.74PCh. 20 - Prob. 20.75PCh. 20 - Prob. 20.76PCh. 20 - Prob. 20.77PCh. 20 - Prob. 20.78PCh. 20 - Prob. 20.79PCh. 20 - Prob. 20.80PCh. 20 - Prob. 20.81PCh. 20 - Prob. 20.82PCh. 20 - Prob. 20.83PCh. 20 - Prob. 20.84PCh. 20 - Prob. 20.85PCh. 20 - Prob. 20.86PCh. 20 - Prob. 20.87CPCh. 20 - Prob. 20.88CP
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