
Concept explainers
(a)
Interpretation: If the given characterisation can be applied to both cellulose and chitin, to cellulose only, to chitin only or to neither cellulose nor chitin has to be stated.
Concept introduction: Cellulose is the most abundant naturally occurring polysaccharide. The cell walls of plants are made up of cellulose. The second most abundant naturally occurring polysaccharide is chitin. It gives rigidity to most of the exoskeletons of crabs and lobsters.
(b)
Interpretation: If the given characterisation can be applied to both cellulose and chitin, to cellulose only, to chitin only or to neither cellulose nor chitin has to be stated.
Concept introduction: Cellulose is the most abundant naturally occurring polysaccharide. The cell walls of plants are made up of cellulose. The second most abundant naturally occurring polysaccharide is chitin. It gives rigidity to most of the exoskeletons of crabs and lobsters.
(c)
Interpretation: If the given characterisation can be applied to both cellulose and chitin, to cellulose only, to chitin only or to neither cellulose nor chitin has to be stated.
Concept introduction: Cellulose is the most abundant naturally occurring polysaccharide. The cell walls of plants are made up of cellulose. The second most abundant naturally occurring polysaccharide is chitin. It gives rigidity to most of the exoskeletons of crabs and lobsters.
(d)
Interpretation: If the given characterisation can be applied to both cellulose and chitin, to cellulose only, to chitin only or to neither cellulose nor chitin has to be stated.
Concept introduction: Cellulose is the most abundant naturally occurring polysaccharide. The cell walls of plants are made up of cellulose. The second most abundant naturally occurring polysaccharide is chitin. It gives rigidity to most of the exoskeletons of crabs and lobsters.

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Chapter 18 Solutions
General, Organic, And Biological Chemistry, Hybrid (with Owlv2 Quick Prep For General Chemistry Printed Access Card)
- Draw the major product of this SN1 reaction. Ignore any inorganic byproducts. CH3CO2Na CH3CO2H Drawing + Br Q Atoms, Bonds and Rings OAC Charges OH ОАс Na ဂ Br Undo Reset Remove Done Drag To Pan +arrow_forwardOrganic Functional Groups entifying positions labeled with Greek letters in acids and derivatives 1/5 ssible, replace an H atom on the a carbon of the molecule in the drawing area with a ce an H atom on the ẞ carbon with a hydroxyl group substituent. ne of the substituents can't be added for any reason, just don't add it. If neither substi er the drawing area. O H OH Oneither substituent can be added. Check D 1 Accessibility ado na witharrow_forwardDifferentiate between electrophilic and nucleophilic groups. Give examples.arrow_forward
- An aldehyde/ketone plus an alcohol gives a hemiacetal, and an excess of alcohol gives an acetal. The reaction is an equilibrium; in aldehydes, it's shifted to the right and in ketones, to the left. Explain.arrow_forwardDraw a Haworth projection or a common cyclic form of this monosaccharide: H- -OH H- OH H- -OH CH₂OHarrow_forwardAnswer the question in the first photoarrow_forward
- Ggggffg2258555426855 please don't use AI Calculate the positions at which the probability of a particle in a one-dimensional box is maximum if the particle is in the fifth energy level and in the eighth energy level.arrow_forwardExplain the concepts of hemiacetal and acetal.arrow_forwardBriefly describe a nucleophilic addition.arrow_forward
- Is nucleophilic acyl substitution an SN1 or SN2 reaction?arrow_forwardDraw product A, indicating what type of reaction occurs. NH2 F3C CF3 NH OMe NH2-NH2, ACOH Aarrow_forwardPhotochemical 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.arrow_forward
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