Chemistry For Today: General, Organic, And Biochemistry, Loose-leaf Version
9th Edition
ISBN: 9781305968707
Author: Spencer L. Seager
Publisher: Brooks Cole
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Textbook Question
Chapter 14, Problem 14.39E
Fructose, present with glucose in honey, reacts with Benedict’s reagent. Circle the structural features that enable fructose to react.
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What functional groups are present in a carbohydrate molecule?
a. Carboxyl and carbonyl groups
b. Alcohol and carboxyl groups
c. Hydroxyl and carbonyl groups
d. Hydroxyl and hydrogen groups
Explain why ketoses can be oxidized in the Benedict’s test,in contrast to ketones which cannot.
a) Aldehydes are easily converted (oxidised) to form carboxylic acids.Ketones, on the other hand, do not oxidise to form carboxylic acids.Suggest a reason why this is so.
Chapter 14 Solutions
Chemistry For Today: General, Organic, And Biochemistry, Loose-leaf Version
Ch. 14 - Prob. 14.1ECh. 14 - Prob. 14.2ECh. 14 - Identify each of the following compounds as an...Ch. 14 - Identify each of the following compounds as an...Ch. 14 - Prob. 14.5ECh. 14 - Prob. 14.6ECh. 14 - Prob. 14.7ECh. 14 - Prob. 14.8ECh. 14 - Draw structural formulas and give IUPAC names for...Ch. 14 - Draw structural formulas and give IUPAC names for...
Ch. 14 - Each of the following names is wrong. Give the...Ch. 14 - Each of the following names is wrong. Give the...Ch. 14 - Prob. 14.13ECh. 14 - Prob. 14.14ECh. 14 - Prob. 14.15ECh. 14 - Explain why propane boils at 42C, whereas ethanal,...Ch. 14 - Use a dotted line to show hydrogen bonding between...Ch. 14 - Use a dotted line to show hydrogen bonding between...Ch. 14 - Prob. 14.19ECh. 14 - Prob. 14.20ECh. 14 - Prob. 14.21ECh. 14 - Prob. 14.22ECh. 14 - Prob. 14.23ECh. 14 - Prob. 14.24ECh. 14 - Label each of the following as acetals, ketals, or...Ch. 14 - Label each of the following as acetals, ketals, or...Ch. 14 - Label each of the following structures as a cyclic...Ch. 14 - Label each of the following structures as a...Ch. 14 - What two functional groups react to form the...Ch. 14 - Hemiacetals are sometimes referred to as potential...Ch. 14 - Complete the following statements: a. Oxidation of...Ch. 14 - Prob. 14.32ECh. 14 - Prob. 14.33ECh. 14 - Prob. 14.34ECh. 14 - Prob. 14.35ECh. 14 - Not all aldehyde give a positve Bendicts test....Ch. 14 - A stockroom assistant prepares three bottles, each...Ch. 14 - Glucose, the sugar present within the blood, gives...Ch. 14 - Fructose, present with glucose in honey, reacts...Ch. 14 - Prob. 14.40ECh. 14 - Prob. 14.41ECh. 14 - Complete the following equations. If no reaction...Ch. 14 - Complete the following equations. If no reaction...Ch. 14 - Describe the products that result when hydrogen...Ch. 14 - Prob. 14.45ECh. 14 - Draw structural formulas for the products of the...Ch. 14 - The following compounds are cyclic acetals or...Ch. 14 - The following compounds are cyclic acetals or...Ch. 14 - Write equations to show how the following...Ch. 14 - Prob. 14.50ECh. 14 - Identify the most important aldehyde and ketone...Ch. 14 - Using Table 14.3, name an aldehyde or ketone used...Ch. 14 - Prob. 14.53ECh. 14 - CH3COH(O)CH3COOHacetaldehydeaceticacid You need to...Ch. 14 - The addition of water to aldehydes and ketones...Ch. 14 - Prob. 14.56ECh. 14 - Formaldehyde levels above 0.10mg/1000L of ambient...Ch. 14 - In the IUPAC name for the following ketone, it is...Ch. 14 - Why can formaldehyde (CH2O) be prepared in the...Ch. 14 - Other addition reactions of aldehydes occur....Ch. 14 - Prob. 14.61ECh. 14 - Prob. 14.62ECh. 14 - Vanilla flavoring is either extracted from a...Ch. 14 - Prob. 14.64ECh. 14 - The use of acetone in laboratory experiments must...Ch. 14 - Prob. 14.66ECh. 14 - Prob. 14.67ECh. 14 - Which of the following would be classified as a...
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- Glucose, the sugar present within the blood, gives a positive Benedicts test. Circle the structural features that enable glucose to react.arrow_forwardFats belong to the class of organic compounds represented by the general formula, RCOOR', where R and R' represent hydrocarbon groups; therefore, fats are: a. ethers. b. soaps. c. esters. d. lipases.arrow_forwardIdentify the organic functional groups and reaction type for the following reaction.The reactant is a(n)a. ketopentoseb. aldopentosec. ketotriosed. alcohol pentosee. carboxylic acid tetroseThe product is a(n)a. aldohexosesb. alcohol pentosesc. carboxylic acid pentosesd. deoxypentosee. ketopentosesThe reaction type is:a. hemiacetal formationb. reduction (hydrogenation)c. hydrolysisd. acetal formatione. mutarotationf. oxidation (benedict's)arrow_forward
- Among the following approved sweeteners, which has the highest relative sweetness? a) aspartame b) neotame c) acesulfame-K d) tagatosearrow_forwardDraw glucose and write the equation for the reaction with Benedict's reagent. Draw a dipeptide composed of valine and phenyalanine.arrow_forwardDraw the structure of the product that forms when the carbonyl compound shown is treated with K,Cr₂O, If no reaction occurs, draw the structure of the organic starting material (reactant). CH,(CH,), (CO)CH(CH,), Click and drag to start drawing a structure. 1 :0 Statover G 0arrow_forward
- What are lactones?arrow_forwardاست Take a look at this molecule, and then answer the questions in the table below it. H OH CH₂OH H O OH OH H H H O CH₂OH H OH H H N H O Is this a reducing sugar? H L OH OH Does this molecule contain a glycosidic bond? If you said this molecule does contain a glycosidic bond, write the symbol describing it. If you said this molecule does contain a glycosidic bond, write the common names (including anomer and enantiomer labels) of the molecules that would be released if that bond were hydrolyzed. If there's more than one molecule, separate each name with a comma. O yes O no O yes O no 0-0 0 α X В ローロ Sarrow_forward2 A reaction is completed on oleic acid that removes its double bond and saturates its fatty acid chain to become completely saturated. What is true about the product? a) The melting point of the product will be greater than that of the starting material. Ob) The intermolecular forces between molecules of the product will be less than those between molecules of starting material. c) The number of kinks in the fatty acid chain will increase.arrow_forward
- Identify the organic functional groups and reaction type for the following reaction.The reactant is a(n) a. aldotetroseb. aldohexosec. carboxylic acid tetrosed. carboxylic acid hexosee. deoxyhexosef. ketohexoseThe product is a(n)a. carboxylic acid hexoseb. alcohol tetrosec. carboxylic acid tetrosed. aldotetrosee. aldohexosef. alcohol hexoseThe reaction type is:a. acetal formationb. oxidation (benedict's)c. hemiacetal formationd. hydrolysise. mutarotationf. reduction (hydrogenation)arrow_forwardWhen a monosaccharide forms a ring by interaction of one of its hydroxyl groups with aldehyde group, the bond is referred to as a(an) linkage. O hemiacetal O glycosidic ester O acetal O ether Question 2arrow_forwardWhat is a ketopentose?arrow_forward
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