نقطة واحدةنقطة واحدةنقطة واحدة=|||which involve.9large number of small moleculescalled monomers to from molecule.high molecule weighA. Substitution reaction.B. Elimination reaction.C. Polymerization reaction.D. Pericyclic reaction..10.occurring polymer isA. Polyethene.१:०१which naturally.B. PVC. OC. Wool.The earliest synthetic polymer .11was developed in 1906, calledBakeliteA. Polyethene.B. phenolic resin.C. PVC.^O

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which involve .9 large number of small molecules called monomers to from molecule .high molecule weigh A. Substitution reaction. B. Elimination reaction. O C. Polymerization reaction. Ο Ο Ο Ο D. Pericyclic reaction. O

which involve .9 large number of small molecules called monomers to from molecule .high molecule weigh A. Substitution reaction. B. Elimination reaction. O C. Polymerization reaction. Ο Ο Ο Ο D. Pericyclic reaction. O

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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docs.google.com نقطة واحدة نقطة واحدة 0 0 ۹:۰۳ :sentences How many types reaction only .1 .in organic chemistry A. Seven. B. Five. C. Eight. Reaction which involve by .2 .electrophiles are called A. Electrophilic substitution reactions. B. Nucleophilic substitution reactions. Substation reaction is define as. نقطة واحدة ||| A. Replaced by another atom or group of atoms. B. Added to a molecule with multiple bond. C. Loss of two atoms and groups. (n > O .3
4 Which involve large number of organic reaction donot which involve large number of small molecules called 8. involve and free radicals O A. Addition reaction. B. Substitution reaction. OC. Elimination reaction. O D. Pericyclic reaction O E. Rearrangement reaction. 9. monomers to from molecule high molecule weigh. A. Substitution reaction. B. Elimination reaction. C. Polymerization reaction. D. Pericyclic reaction.
نقطة واحدة نقطة واحدة نقطة واحدة = ||| १:०१ Most monomers are organic .12 materials, atoms are joined in A. Hydrogen bonding. B. Covalent bonding. The development of modern .13 plastics started in 1920s using raw material extracted from coal and petroleum is products A. Phenolic resin. B. Polyethene. C. PVC. .Polymer structure are involve .14 A. One structure. B. Three structure. C. Two structure. ^ O !
Q3. There are three types of relative configurations of stereocenters of polymer stereochemistry Describe these three types of polymer .1 configurations Give example of each type .2 Draw the structure of each type .3 .Which one can be crystalize, give the reason .4
8. Deformation behavior of a thermoplastic plastic above glass transition temperature a. viscous fluid b. brittle C. leathery and then rubbery d. glassy a. Polymer b. Monomer c. plastic d. synthetic 10. Stages involve in addition polymerization EXCEPT a. Propagation b. Catalyst C. termination d. initiation abioe on
1. A hydrocarbon containing one or more -C=C- bonds. a. addition reaction Ob. aliphatic compound Oc. alkene d. alkyne De. aromatic hydrocarbon Of. hydration g. hydrogenation h. monomer i. phenyl group Oj. polycyclic aromatic hydrocarbon k. polymer
The number-average molecular weight of a polymer is 1775380 g/mol. Compute the degree of polymerization. (express in whole number) repeat unit is: ... HH || -C-C- I T H CH₂ Molar Mass: Carbon 12.01 g/mol Chlorine 35.45 g/mol Fluorine 19.00 g/mol Hydrogen 1.008 g/mol Oxygen 16.00 g/mol
Degradation or decomposition. .18 This curing (cross-linked) reaction ************** A. is irreversible. B. Is reversible. . Organic chemistry refer to 19 A. Study carbon compounds. B. Study carbon and hydrogen compounds C. Study hydrocarbons and derivatives compounds. Organic compounds are divide - 20 : to A- Aromatic hydrocarbons. B- Aliphatic hydrocarbons. C Aromatic and aliphatic hydrocarbons.
Q2. A) Determine the monomer unit of the following polymer Monomer unit = B) Determine the structure of polymer that will be synthesized from the given monomer unit Q2. A) Determine the monomer unit of the following polymer CH3 CH3 CH3 (CH2-C-CH₂-C-CH₂-07 CO2CH3 CO2CH3 CO2CH3 Monomer unit = B) Determine the structure of polymer that will be synthesized from the given monomer unit Initiator heat
c2. Subject :- Chemistry Which one is more difficult to polymerize with free radical polymerization and why?
1.Discuss the differences between condensation and addition polymerization.2.What requirement should be provided to achieve high yield and high molecular weight of polymer by condensation reaction?3.What is interfacial polymerization?4.Describe biopolymer and synthetic polymer. Give examples to support your answer5.Briefly discuss the classification of polymers.6.Why polymers are widely used in our daily life?
C. cyclohexyl alcohol D. isoamyl alcohol 38. An aromatic ring should satisfy Huckel's rule, wherein the number of electrons participating in the cyclic conjugation should be equal to 4n +2. Which of the following cyclic structures does NOT obey Huckel's rule? A. Cyclobutadienyl dianion B. Tetrahydrofuran ring C. Pyrimidine ring structure D. Cyclopropene structure 39. Why is ethanal incapable of forming a hydrogen bond with another ethanal molecule despite exhibiting a bond dipole in the C=O bond? A. The oxygen atom is partially reactive due to the strong bond dipole. B. The carbon atom does not form a highly polar bond with hydrogen. C. The oxygen atom is sp2 hybridized with almost 67% p character. D. Oxygen exhibits resonance with carbon leading to bond stability. 40. What is the role of H+ ions in the nucleophilic substitution of alcohols using hydrogen halides? A. Protonation of -OH group B. Stabilization of carbocation C. Activation of oxygen radical D. Removal of an alkyl group…