GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP
GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP
7th Edition
ISBN: 9781305866966
Author: STOKER
Publisher: CENGAGE L
Question
Book Icon
Chapter 15, Problem 15.111EP

(a)

Interpretation Introduction

Interpretation:

Condensed structural formula of the organic product that is formed when pentanal is treated with hydrogen in presence of nickel catalyst has to be given.

Concept Introduction:

In organic chemistry, oxidation reaction is referred to the number CO bonds increase and/or number of CH bonds decrease.

In organic chemistry, reduction reaction is referred to the number CO bonds decrease and/or number of CH bonds increase.

Alcohols undergo oxidation reaction and reduction reaction.  This depends upon the number of hydrogen atoms that is bonded to the alpha carbon atom.  Primary and secondary alcohol undergoes oxidation reaction while tertiary alcohol does not undergo oxidation reaction.  Primary alcohols undergo oxidation to give aldehyde and carboxylic acid as product.  Secondary alcohol undergoes oxidation to give ketone as the product.

Aldehyde undergoes oxidation to give carboxylic acid as the product while ketone does not undergo oxidation reaction.

The reverse of oxidation reaction is reduction reaction.  Reduction of aldehyde gives primary alcohol as the product and reduction of ketone gives secondary alcohol as the product.  Reduction can be accomplished using hydrogen gas and a metal catalyst namely nickel.

(b)

Interpretation Introduction

Interpretation:

Condensed structural formula of the organic product that is formed when pentanal is treated with ethanol in 1 to 1 reacting ratio has to be given.

Concept Introduction:

Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom.  Ketones are compounds that contain a carbonyl group bonded to two carbon atoms.  Aldehydes and ketones undergo addition reaction across the carbonyl group.

Aldehydes and ketones react with alcohol to form hemiacetal as the product.  This reacts with further molecule of aldehyde or ketone to form acetal.

Hemiacetal is an addition product that is obtained by reaction between aldehyde or ketone with alcohol.  The general reaction of hemiacetal formation can be given as,

GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP, Chapter 15, Problem 15.111EP , additional homework tip  1

(c)

Interpretation Introduction

Interpretation:

Condensed structural formula of the organic product that is formed when pentanal is treated with methanol in 1 to 2 reacting ratio has to be given.

Concept Introduction:

Aldehydes contain a carbonyl group that is bonded to a hydrogen atom and a carbon atom.  Ketones are compounds that contain a carbonyl group bonded to two carbon atoms.  Aldehydes and ketones undergo addition reaction across the carbonyl group.

Aldehydes and ketones react with alcohol to form hemiacetal as the product.  This reacts with further molecule of aldehyde or ketone to form acetal.

Hemiacetal is an addition product that is obtained by reaction between aldehyde or ketone with alcohol.  The general reaction of hemiacetal formation can be given as,

GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP, Chapter 15, Problem 15.111EP , additional homework tip  2

From the above general structure of hemiacetal it is found that it is an organic compound that contains a carbon atom that is bonded to an alkoxy group and a hydroxyl group.

GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP, Chapter 15, Problem 15.111EP , additional homework tip  3

Acetal is formed when the formed hemiacetal reacts with further alcohol molecule so that the hydroxyl group in the hemiacetal is converted into alkoxy group.  This can be shown as given below,

GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP, Chapter 15, Problem 15.111EP , additional homework tip  4

The alcohol that is reacting with the hemiacetal can be from the same alcohol which involved in formation of hemiacetal or a different alcohol molecule.  Therefore, the ketone or aldehyde must react with two alcohol molecules that may or may not be identical to form acetal.

(d)

Interpretation Introduction

Interpretation:

Condensed structural formula of the organic product that is formed when pentanal is treated with K2Cr2O7 has to be given.

Concept Introduction:

In organic chemistry, oxidation reaction is referred to the number CO bonds increase and/or number of CH bonds decrease.

In organic chemistry, reduction reaction is referred to the number CO bonds decrease and/or number of CH bonds increase.

Alcohols undergo oxidation reaction and reduction reaction.  This depends upon the number of hydrogen atoms that is bonded to the alpha carbon atom.  Primary and secondary alcohol undergoes oxidation reaction while tertiary alcohol does not undergo oxidation reaction.  Primary alcohols undergo oxidation to give aldehyde and carboxylic acid as product.  Secondary alcohol undergoes oxidation to give ketone as the product.

Aldehyde undergoes oxidation to give carboxylic acid as the product while ketone does not undergo oxidation reaction.

Blurred answer
Students have asked these similar questions
Photochemical smog is formed in part by the action of light on nitrogen dioxide. The wavelength of radiation absorbed by NO2 in this reaction is 197 nm.(a) Draw the Lewis structure of NO2 and sketch its π molecular orbitals.(b) When 1.56 mJ of energy is absorbed by 3.0 L of air at 20 °C and 0.91 atm, all the NO2 molecules in this sample dissociate by the reaction shown. Assume that each absorbed photon leads to the dissociation (into NO and O) of one NO2 molecule. What is the proportion, in parts per million, of NO2 molecules in this sample? Assume that the sample behaves ideally.
Correct each molecule in the drawing area below so that it has the skeletal ("line") structure it would have if it were dissolved in a 0.1 M aqueous solution of HCI. If there are no changes to be made, check the No changes box under the drawing area. No changes. HO Explanation Check NH, 2 W O :□ G ©2025 M unter Accessibility
An expression for the root mean square velocity, vrms, of a gas was derived. Using Maxwell’s velocity distribution, one can also calculate the mean velocity and the most probable velocity (mp) of a collection of molecules. The equations used for these two quantities are vmean=(8RT/πM)1/2 and vmp=(2RT/M)1/2 These values ​​have a fixed relationship to each other.(a) Arrange these three quantities in order of increasing magnitude.(b) Show that the relative magnitudes are independent of the molar mass of the gas.(c) Use the smallest velocity as a reference for establishing the order of magnitude and determine the relationship between the larger and smaller values.

Chapter 15 Solutions

GENERAL,ORGANIC,+BIO.CHEM.-MINDTAP

Ch. 15.4 - Prob. 3QQCh. 15.4 - Prob. 4QQCh. 15.4 - Prob. 5QQCh. 15.5 - Prob. 1QQCh. 15.5 - Prob. 2QQCh. 15.5 - Prob. 3QQCh. 15.5 - Prob. 4QQCh. 15.5 - Prob. 5QQCh. 15.6 - Prob. 1QQCh. 15.6 - Prob. 2QQCh. 15.6 - Prob. 3QQCh. 15.7 - Prob. 1QQCh. 15.7 - Prob. 2QQCh. 15.8 - Prob. 1QQCh. 15.8 - Prob. 2QQCh. 15.9 - Prob. 1QQCh. 15.9 - Prob. 2QQCh. 15.10 - Prob. 1QQCh. 15.10 - Prob. 2QQCh. 15.10 - Prob. 3QQCh. 15.10 - Prob. 4QQCh. 15.11 - Prob. 1QQCh. 15.11 - Prob. 2QQCh. 15.11 - Prob. 3QQCh. 15.11 - Prob. 4QQCh. 15.11 - Prob. 5QQCh. 15.12 - Prob. 1QQCh. 15.12 - Prob. 2QQCh. 15 - Prob. 15.1EPCh. 15 - Prob. 15.2EPCh. 15 - Prob. 15.3EPCh. 15 - In terms of polarity, which carbonyl group atom...Ch. 15 - Prob. 15.5EPCh. 15 - What is the geometrical arrangement for the atoms...Ch. 15 - Prob. 15.7EPCh. 15 - Prob. 15.8EPCh. 15 - Prob. 15.9EPCh. 15 - Prob. 15.10EPCh. 15 - Prob. 15.11EPCh. 15 - Classify each of the following structures as an...Ch. 15 - Prob. 15.13EPCh. 15 - Prob. 15.14EPCh. 15 - Prob. 15.15EPCh. 15 - Prob. 15.16EPCh. 15 - Prob. 15.17EPCh. 15 - Prob. 15.18EPCh. 15 - Prob. 15.19EPCh. 15 - Prob. 15.20EPCh. 15 - Prob. 15.21EPCh. 15 - Prob. 15.22EPCh. 15 - Prob. 15.23EPCh. 15 - Prob. 15.24EPCh. 15 - Prob. 15.25EPCh. 15 - Prob. 15.26EPCh. 15 - Prob. 15.27EPCh. 15 - Prob. 15.28EPCh. 15 - Prob. 15.29EPCh. 15 - Prob. 15.30EPCh. 15 - Prob. 15.31EPCh. 15 - Prob. 15.32EPCh. 15 - Prob. 15.33EPCh. 15 - Prob. 15.34EPCh. 15 - Prob. 15.35EPCh. 15 - Prob. 15.36EPCh. 15 - Prob. 15.37EPCh. 15 - Prob. 15.38EPCh. 15 - Prob. 15.39EPCh. 15 - Prob. 15.40EPCh. 15 - Draw a structural formula for each of the...Ch. 15 - Prob. 15.42EPCh. 15 - Prob. 15.43EPCh. 15 - Prob. 15.44EPCh. 15 - Prob. 15.45EPCh. 15 - Prob. 15.46EPCh. 15 - Prob. 15.47EPCh. 15 - Prob. 15.48EPCh. 15 - Prob. 15.49EPCh. 15 - Prob. 15.50EPCh. 15 - Prob. 15.51EPCh. 15 - Prob. 15.52EPCh. 15 - Prob. 15.53EPCh. 15 - Prob. 15.54EPCh. 15 - Prob. 15.55EPCh. 15 - Prob. 15.56EPCh. 15 - Prob. 15.57EPCh. 15 - Prob. 15.58EPCh. 15 - Prob. 15.59EPCh. 15 - Prob. 15.60EPCh. 15 - Prob. 15.61EPCh. 15 - Prob. 15.62EPCh. 15 - Prob. 15.63EPCh. 15 - Prob. 15.64EPCh. 15 - Prob. 15.65EPCh. 15 - Prob. 15.66EPCh. 15 - Prob. 15.67EPCh. 15 - Which member in each of the following pairs of...Ch. 15 - Prob. 15.69EPCh. 15 - Prob. 15.70EPCh. 15 - Prob. 15.71EPCh. 15 - Prob. 15.72EPCh. 15 - Prob. 15.73EPCh. 15 - Prob. 15.74EPCh. 15 - Prob. 15.75EPCh. 15 - Prob. 15.76EPCh. 15 - Prob. 15.77EPCh. 15 - Prob. 15.78EPCh. 15 - Prob. 15.79EPCh. 15 - What is the chemical formula of the inorganic...Ch. 15 - Prob. 15.81EPCh. 15 - Which of the following compounds would react with...Ch. 15 - Prob. 15.83EPCh. 15 - Prob. 15.84EPCh. 15 - Which of the three compounds pentanal,...Ch. 15 - Prob. 15.86EPCh. 15 - Prob. 15.87EPCh. 15 - Prob. 15.88EPCh. 15 - Prob. 15.89EPCh. 15 - Prob. 15.90EPCh. 15 - Prob. 15.91EPCh. 15 - Prob. 15.92EPCh. 15 - Which carbon atom is the hemiacetal carbon atom in...Ch. 15 - Prob. 15.94EPCh. 15 - Prob. 15.95EPCh. 15 - Prob. 15.96EPCh. 15 - Prob. 15.97EPCh. 15 - Prob. 15.98EPCh. 15 - Prob. 15.99EPCh. 15 - Prob. 15.100EPCh. 15 - Prob. 15.101EPCh. 15 - Prob. 15.102EPCh. 15 - Prob. 15.103EPCh. 15 - Prob. 15.104EPCh. 15 - Prob. 15.105EPCh. 15 - Prob. 15.106EPCh. 15 - Prob. 15.107EPCh. 15 - Prob. 15.108EPCh. 15 - Prob. 15.109EPCh. 15 - Prob. 15.110EPCh. 15 - Prob. 15.111EPCh. 15 - Prob. 15.112EPCh. 15 - Prob. 15.113EPCh. 15 - Prob. 15.114EPCh. 15 - Prob. 15.115EPCh. 15 - Prob. 15.116EPCh. 15 - Prob. 15.117EPCh. 15 - Prob. 15.118EP
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Chemistry for Today: General, Organic, and Bioche...
Chemistry
ISBN:9781305960060
Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher:Cengage Learning
Text book image
Organic And Biological Chemistry
Chemistry
ISBN:9781305081079
Author:STOKER, H. Stephen (howard Stephen)
Publisher:Cengage Learning,
Text book image
General, Organic, and Biological Chemistry
Chemistry
ISBN:9781285853918
Author:H. Stephen Stoker
Publisher:Cengage Learning
Text book image
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Text book image
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Text book image
Chemistry: Matter and Change
Chemistry
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Glencoe/McGraw-Hill School Pub Co