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What physical property of a material that refers to the rate of heat flow … Your email address will not be published. T g is increased with the molecular weight. One technique is viscometry. MCQs Of Polymer chemistry 1. a) 50000 b) 51600 c) 49200 d) 50800 Copolymers and higher mer polymers also need to be characterized for molecular composi- tion as a function of molecular weight. Answer: Option C. 17. Polymers: Molecular Weight and its Distribution 1. polyester: a polymer with a COOR repeating unit. d) Weight average quinon weight This change in properties is often the result of bond breaking in the polymer backbone (chain scission) which may occur at the … For instance a particular polythylene molecule with \(DP = 1000\) will have a molecular weight of 28,000. All Rights Reserved. 11) Zinc oxide and titanium oxide used in which GRDDS approach? © 2011-2021 Sanfoundry. Determination of molecular weight of polymers by visometry 1. The mass average molecular mass & number average molecular mass of a polymer are respectively 40,000 and 30,000. Chemistry MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. What are Polymers? a) Symmetry Correct Answer. For example, shown in the interrelation between molecular weight and strength for a typical polymer. One such method is vapour phase __________ that indirectly measures vapor pressures of polymer solutions. Ans: the heat amount of heat required to raise the temperature of one gram of the polymer one degree Celsius is called the heat capacity. Because of this, polymer molecular weights are usually given as averages. The unit of molecular weight of polymer is either kg/mol or g/mol. d) Number mode molecular weight Step-growth polymerization! The Living World; Biological Classification; Plant Kingdom; Morphology of Flowering Plants; Anatomy of Flowering Plants; Cell - The unit of Life; Cell Cycle and Cell Division; Transport in Plants; Mineral Nutrition; Photosynthesis in Higher Plants; Respiration in Plants; Plant Growth and Development; Reproduction in … The shape of the polymer molecule (molecular architecture) will be influenced naturally by the nature of the repeating unit and the manner in which these units are linked together. D. Sinking approach. Figure 1. B. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. The change of moisture content of soils, changes the (A) Value of the angle of repose (B) Amount of compaction required (C) Cohesive strength of soil (D) All the above. What is the average molecular weight of an amino acid residue in a protein? Students can solve NCERT Class 12 Chemistry Polymers MCQs Pdf with Answers to know their preparation level. Give an example of biodegradable polymer. (d) Interaction with molecular chaperons. 73. The polydispersity index of polymer will be A. Chemistry 5861 - Polymer Chemistry 3 d) D) Mw bar/Mn bar ≥ 1 is Polydisperse General Molecular Weight Expression & Mz bar and Mv bar 1) 2) a) 3) a) b) II M bar = ΣNiMi (a+1) / Σ N iMi a A Higher Order MW, called the Z average, is closely related to processing View Answer, 2. Conclusion Upon irradiation of MCQ/S copolymer film by light with λ > 380 nm in air, the CQ structure in the copolymer was transformed mainly … SEC-MALS determines molecular weight from 200 g/mol to 1 billion g/mol. High … Stock Preparation & Additives for Papermaking, Calculations of Wood, Paper & Other Materials, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Pulp & Paper Questions and Answers – Condensation Polymers, Next - Pulp & Paper Questions and Answers – Nomenclature, Electrical Machines Questions and Answers – Transformer Phasor Diagram, Electrical Machines Questions and Answers – Equivalent Circuit of Transformer, Chemical Process Calculation Questions and Answers, Engineering Chemistry I Questions and Answers, Chemical Engineering Questions and Answers, Polymer Engineering Questions and Answers, Pulp & Paper Questions and Answers – Wood Chips Preparation and Handling at the Pulp Mill, Pulp & Paper Questions and Answers – Wood Chip Measurement, Pulp & Paper Questions and Answers – Basic Optical Tests of Paper, Pulp & Paper Questions and Answers – Paper Machine, Pulp & Paper Questions and Answers – Basic Paper Properties, Pulp & Paper Questions and Answers – Internal Sizing, Pulp & Paper Questions and Answers – Sulphite Liquor Analysis, Pulp & Paper Questions and Answers – Wood Moisture Content and Density, Pulp & Paper Questions and Answers – Specific Types of Paper, Pulp & Paper Questions and Answers – General Grades of Paper, Polymer Engineering Questions and Answers – Distribution of Molecular Weight in Linear Polycondensation, Pulp & Paper Questions and Answers – Mechanical Properties of Paper. b) Weight average cation weight c) Weight average anion weight Polymer Technology MCQ question is the important chapter for … a) Number average b) Weight average c) Viscosity average d) Z-average 17 Which of the following is not a characteristic property LED? Skempton's … The chains in a sample may differ in, for example, molecular weight, degree of long or short-chain branching, stereostructure or composition (either grossly, as with copolymers, or slightly, as with end group or foreign moieties incorporated in the chain during … View Answer, 6. It is important to determine the molecular weight of polymers because the applications of polymers depends on their molecular weight. Please visit using a browser with javascript enabled. where c is the concentration of the solute and η 0 the viscosity of the solvent. Clear Q. High molecular weight is achieved early on and polymer is a) Natural b) Synthetic c) Semisynthetic d) Artificial 16 Ʃ Ʃ Formula is used for calculating _____ molecular weight. The organic compounds having very high molecular weight are called A. Carboxylic acids B. Ketones C. Aldehydes D. Polymers View Answer. Low densitysystems . polymerization is: Thermosetting polymer, Bakelite is formed by the reaction of For instance a particular polythylene molecule with \(DP = 1000\) will have a molecular weight of 28,000. Buoyant unit weight equals the saturated density (A) Multiplied by unit weight of water (B) Divided by unit weight of water (C) Plus unit weight of water (D) Minus unit weight of water. the molecular weight growth is slow. The molecular weight of a polymer is determined by the chemical structure of the monomer units, the lengths of the chains and the extent to which the chains are interconnected to form branched molecules. Free PDF Download of CBSE Chemistry Multiple Choice Questions for Class 12 with Answers Chapter 15 Polymers. View Answer, 3. Our testing, insight and advice can assist you in your decision making process and help to ensure the integrity of the product. Block copolymers and polymer mixtures also offer significant challenges to evaluate their molecular weight distribution. In the case of MCQ/S, photoreduction forms macroradicals that recombine causing an increase in the molecular weight. ethylene glycol and … View Answer, 4. View Answer, 5. 3. It is due to the internal friction of molecules and mainly depends on the nature & temperature of the liquid. This thermoplastic has an extremely wide range of applications, being therefore one of the most produced polymers. b) Number mean molecular weight 14 In mixed aromatic/aliphatic solvents, the polymer … A1.8). Once you are finished, click the button below. b) Weight average a) Monodisperse b) Polydispersity c) Cellulose chain d) Synthetic polymer Ubbelohde viscometer is coomonly used viscometer to determine the relative viscosity of polymer solution. c) Monodisperse The molecular weight properties of a polymer may vary over the life cycle of a material as the polymer progresses through stages such as raw material, molding, sterilization, and storage. Chemistry MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. (a) Lipoproteins (b) Glycoproteins (c) Metalloproteins (d) Complete proteins. Question 5. 2 Polymers are long chain molecules produced by linking small repeat units (monomers) together There are many ways to link different types of monomer to form polymers Polymers exhibit very different physical properties compared to the monomers, dependent on the length of the polymer chains The … Some natural polymers are composed of one kind of monomer. The __________ is always higher than the number average molecular weight, except for the special case when they are equal if all of the polymers have the exact same molecular weight. Join our social networks below and stay updated with latest contests, videos, internships and jobs! d) Synthetic polymer References & Notes. The molecular weight is related to the glass transition temperature by the Fox–Flory Equation: T g =T g, ∞ ̶ (K/M n) (Fox-Flory Equation) where T g, ∞ is the glass transition temperature at the molecular weight of infinity, and K is … It is a way of determining the molecular mass of a polymer. The number average molecular mass and mass average molecular mass of a polymer are respectively 30,000 and 40,000. The polydispersity index of polymer will be b) Osometry polymer: a high molecular weight macromolecule made up … C. Magnetic approach . High-molecular-weight polymers with weight-average molecular weight M w ∼ 10 5 were successfully obtained when excess 2,2′-dimethoxybiphenyl was used in the presence of several equivalents of AlCl 3 catalysts (entry 13, Table 1). A. Dielectric strength. The properties of the polymers depend on the distribution of molecular weights. Z average molecular weight or Z average molar mass is the third power average molar mass. Introduction Synthetic polymers are polydisperse to varying degrees in a variety of ways. Polymer molecular weight (MW) is the molecular mass of a polymer chain. A polymer molecule may assume a large or limited number of conformations depending on: Steric factors Whether the polymer is … (1) A high molecular weight molecule built from a large number of simple molecules is called a (A) Monomer (B) Isomer (C) Polymer (D) Tautomer. b) False The polydispersity index of the polymer is, The plastic household crockery is prepared, using. A number average molecular weight is obtained by methods that solely depend on the colligative properties of polymer solutions. Polystyrene also known as PS is a high molecular weight polymer produced from styrene. Sanfoundry Global Education & Learning Series – Pulp and Paper. Answer: Option D. 16. The word “polymer” has been derived from the Greek words 'poly' and 'meros', implying many parts, and refers to a characterizing feature of polymeric materials – their chain like structure. The species which can best serve as an initiator for the cationic ∞ is the tensile strength of the polymer with molecular weight of infinity. Viscometry average molecular weight. Please wait while the activity loads. Molecular Weight : The glass transition temperature is also affected by the molecular weight of the polymer (Fig. So, as a result the polymeric molecules have different molecular weights. If you leave this page, your progress will be lost. Muhammed ilyas khan at . The EPA hopes this technical manual will: (1) assist the chemical manufacturer or importer in determining whether the PMN substance is a polymer as defined by the polymer exemption rule, (2) guide the manufacturer or importer in determining whether the … Determine the viscosity average molecular weight of a polymer. Many methods are available for measuring viscosity of polymer solution. Learn Polymer Technology MCQ questions & answers are available for a Chemical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Compounds having same molecular formula but differ in structural formula are called A. Polymer B. Monomer C. Isomer D. Allotropes View Answer. 1. 12. (a) In aromatic solvents, the polymer molecular weight decreases with increasing basicity of the solvent. Polymers are not restricted to monomers of the same chemical composition or molecular weight and structure. What is the name of the hidden part? ... C. Low molecular weight D. All of these. As the molecular weight increases, the compound is more grease-like, and, if the MW is greater than about 6000, PEG is a white solid. Introduction • In simple compounds there is some definiteness about the molecular weight, hence we can say the … 15 Silk is an example of _____ polymer. Outline! Weight-average molecular weight: Mw = ZwxMx = NXMX wx = wt fraction of polymer chains having molecular weight, Mx = - ZNXMX. Dependence of mechanical strength on polymer molecular weight. (Q2) : define first order … Remove Filters; Clear Question Attempted × Botany. It is represented by η. 4. Knowledge of the molecular weight of polymers is very important because the physical properties of macromolecules are affected by their molecular weight. Floating approach B. Muco-adhesive approach. It can also determine molecular size – the rms radius, or radius of gyration R g – from 10 nm to 500 nm and beyond. Clear Chapter Wise. Chemistry (SPPU) M3-21 Synthetic Organic Polymers Q. Polymer Science and Engineering Lecture 3 - Molecular Weight Averages and Distributions January 22, 2001 Reading: Sperling, Chapter 3. When the number of monomers is very large, the compound is sometimes called a high polymer. PDF unavailable: 33: Determination of Molecular Weight of Polymers (Contd.) Fibres possess high tensile strength and … 10) Which GRDDS technique required external assistance? Contents • Introduction • Determination of molecular weight • Polymer solutions • Viscometry • References 3. The polymer sample contains chains of varying lengths, therefore, its molecular mass is always expressed as an average. a) Monodisperse The size of the polymer is best discussed in terms of molecular weight. • Application: adhesives and coatings. The size of the polymer is best discussed in terms of molecular weight. Which compound form linear polymer due to H-bond? a) True A __________ depicted as Mn, Let Ni equal the number of the molecules or moles or other calculated of number of molecules with mass M, or a calculated of mass such as D.P. Also, the molecular weights of two different polymers in a particular solvent can be related using the Mark–Houwink equation when the polymer-solvent systems have the same intrinsic viscosity: = Knowing the Mark–Houwink parameters and the molecular weight of one of the polymers allows one to find the molecular weight of the other … M.C.Q. Molecular mass of the polymer (Mp) is equal to the multiplication of molecular mass of the monomer (Mm) and degree of polymerization (n). Which of the following statements is not correct for fibres? $\overline {M_w}$ is the weight average molecular weight. Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject. A de… Mechanistic studies found that the AlCl 3 could selectively coordinate with the methoxy groups in the monomer to deactivate its reaction with acyl … This makes determining a … A. The polydispersity index of the polymer is Number-average molecular weight: Nx = # moles of polymer chains having molecular weight, M, Weight-average molecular weight: ZNXMX wx = wt fraction of polymer chains having molecular weight, Mx = Degree of polymerization: DPn = NXMX SNXMX "1-c c = extent of conversion of functional groups Polydispersity index: M, Critical extent of reaction: 2 1 pi v Average degree of … 131 Kevlar polymer in the structure of chain contains _ (a) Download CBSE Class 12 Chemistry Polymers MCQs Set A in pdf, Chemistry chapter wise Multiple Choice Questions free, Q.1 Which is not true about polymers?Options: (a) Polymers do not carry any charge(b) Polymers have high viscosity(c) Polymers scatter light(d) Polymers have low molecular weightAnswer=DQ.2. View Answer, 7. C. Water absorption. And MALS detectors only require annual calibration. MCQ quiz on Polymers multiple choice questions and answers on Polymers MCQ questions quiz on Polymers objectives questions with answer test pdf. AR, MCQ; Q. This set of Pulp and Paper Multiple Choice Questions and Answers (MCQs) focuses on “Molecular Weight of Polymers”. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800? Determination of Molecular Weight of Polymers (Contd.) Because polymeric materials do not consist of strictly identical molecules, but instead are a mixture of many species having different values of \(DP\), the … Z Average Molecular Weight. Correct Answer. Determination of molecular weight of polymers by viscometry Presented by: Udhay Kiron 13305017 2. Students can solve NCERT Class 12 Chemistry Polymers MCQs Pdf with Answers to know their preparation level. a) True A polymeric molecules possess the molecular weight _____ a) Different b) Fixed c) That cannot be determined d) May be determined View Answer . The rate of reactions of most organic compounds are A. The shape of the polymer molecule (molecular architecture) will be influenced naturally by the nature of the repeating unit and the manner in which these units are linked together. You need a extent of reaction of 1 for this reaction to yield high molecular weight polymers. 11. The source of Taq polymerase used in PCR is a : isomers of glucose that differ in configurations at carbons one and four (C-1 and C-4), isomers of glucose that differ in configuration at carbon one (C-1). c) Cellulose chain a) Weight average molecular weight _ Engg. Chain growth involves initiation using an initiator and propagation of the polymer as a chain with a propagating chain end. Weight average molecular weight _____ on … Number-average molecular weight: Nx = # moles of polymer chains having molecular weight, Mx. For instance, polymerizing styrene, a monomer, under suitable reaction conditions, results in the polymer polystyrene (Figure 1). The polymers produced in polymerization reactions … The molecular weight of polymer that is determined by viscometry is MV i.e. Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. A is some constant, and M is the molecular weight. Polymers MCQs: MCQs test on 'Polymers' with answers, Test: 1, Total Questions: 15 Theory: Viscosity is an internal property of a fluid that offers resistance to flow. _____is not a classified form of conjugated proteins. PDF unavailable: 32: Determination of Molecular Weight of Polymers (Contd.) Neoprene is rapidly … Which one of the following is not a condensation polymer? At high temprature the enzymes denatures because enzymes are made of globular proteins .and proteins are made from combination of many amino acids so amoung linkage of this amino acids there is bond called peptide bond so at high temprature the peptide breaks down and the whole polypeptide chain breaks into simple once to amino acid so thus enzyme becomes denature.as … Polymer degradation is a change in the properties—tensile strength, color, shape, or molecular weight—of a polymer or polymer-based product under the influence of one or more environmental factors, such as heat, light, and the presence of certain chemicals, oxygen, and enzymes. a) Number average molecular weight Electric resistivity . Polymers Class 12 Chemistry MCQs Pdf. The molecular weight of a particular polymer molecule is a product of the degree of polymerization and the molecular weight of the repeating unit. The advantage to determine molecular weight by … growing polymer molecule; (2) crosslink the polymer; (3) network the polymer; (4) form a thermosetting polymer ___ 19. Very fast … Knowing the Mark–Houwink parameters and the molecular weight of one of the polymers allows one to find the molecular weight of the other polymer using a GPC. Polymers and Molecular Weight GPC On Tour, Barcelona, 28th February 2012 1 . Any items you have not completed will be marked incorrect. Neoprene or polychloroprene is a synthetic rubber that is flexible at different temperatures, has good resistance to oil and substantial stability to the chemical. c) Monodisperse While small molecules of the same elemental composition all exhibit the same molecular weight, polymer chains exhibit different characteristics. Calculate the osmotic pressure associated with 50.0 g of an enzyme of molecular weight 98,000 g/mol dissolved in water to give 2600 mL of solution at 30.0 o C. (a) 0.484 torr (b) 1.68 torr (c) 1.96 torr (d) 2.48 torr (e) 3.71 torr 16. • Electronic device process: LED, FET, PV, Memeory etc. b) False Two experimentally determined values are common: \(M_n\), the number average molecular weight, is calculated from the mole fraction distribution of different sized molecules in a sample, and \(M_w\), the weight average molecular weight, is calculated from the weight fraction distribution of different sized … The mass average molecular mass & number average molecular mass of a polymer are respectively 40,000 and 30,000. d) Polydispersity To practice all areas of Pulp and Paper, here is complete set of 1000+ Multiple Choice Questions and Answers. Number distribution and number average molecular weight (Mn)! High molecular weight polymer has high viscosity but difficult processing. Secondary Structure . Weight distribution and weight average Viscosity is defined as the measure of the opposing force of material to flow. Because virtually all polymers are mixtures of many large molecules, we have to resort to averages to describe polymer molecular weight. If loading fails, click here to try again, The polymer used in orthopedic devices and in controlled drug release is, The number average molecular mass and mass average molecular mass of a polymer are respectively 30,000 and 40,000. Free PDF Download of CBSE Chemistry Multiple Choice Questions for Class 12 with Answers Chapter 15 Polymers. This structure is formed by developing chemical links between a number of monomers or repeating units. Polymer Molecular Weight Units. It can be expressed in different units such as poise and pascal second (Pa s = N s m-2). No. What physical property of a material refers to the amount of weight gain (%) experienced in a polymer after immersion in water for a specified length of time under a controlled environment? (gas, liquid or solid) Polymer solution is important: • Classical analyses of polymers are conducted on dilute solutions size exclusion chromatography osmometry, viscometry light scattering. d) Adiabatic b) Weight average A. H2O B. NH3 C. View Answer, a) Number average molecular weight 1. Paul J. Flory, Principles of Polymer Chemistry, 1st Edition 1953 Cornell University The intrinsic viscosity is defined by. The polymer molecular weight is affected by several variables, such as (a) the type of solvent, (b) the monomer and cobalt concentration, (c) the concentration of the aluminum alkyl, (d) the polymerization temperature and (e) the monomer conversion. Because of this, polymer molecular weights are usually given as averages. A sample of a high polymer consist of 10% by weight of a macromolecule of molecular weight 10000 and 90% by weight of a macromolecule with molecular weight 100000, then its weight average molecular mass will be (a) 52000 (b) 85000 (c) 91000 (d) 89000. Neoprene . copolymer or higher mer polymers with various degrees of structural randomness further complicate a complete description of the molecular ensemble. The number of monomers in a chain is called the degree of polymerization. b) Polydispersity Also, this page requires javascript. Which of the following belongs to the class of natural polymers?Options: phenol with. Crosslink … __________ consist of individual polymers with varying molecular weights. Several methods utilized to characterize polymers give average molecular weights that depend on the molecular weight distribution as well as the number average molecular weight. The properties of the polymers depend on the distribution of molecular weights. 5. View Answer: Answer: Option C. Solution: 13. View Answer. c) Isentropic Sol: (b) The amino acid sequence. Sol: (d) Complete proteins. Polymer Molecular Weight Distributions 11 Samples of synthetic polymers always contain polymer chains with a range of chain lengths One way to describe the length of the polymer chains is in terms of an average molecular weight, i.e the average of all the chain lengths in the sample HOWEVER…. Answer: a Explanation: When polymerisation takes place, the growing polymeric chains are terminated at different sizes of molecules. d) Polydispersity The word polymer designates an unspecified number of monomer units. Very slow B. The molar mass distribution of a … The molecular weight of a particular polymer molecule is a product of the degree of polymerization and the molecular weight of the repeating unit. View EC_MCQ_3.pdf from CS,MATH IT101 at Singhad College Of Nursing , Pune. Chapter 4 Polymer solutions 4.1 Introduction Solution: any phase containing more than one component. A. Dacron B. Neoprene C. Melamine D. Glyptal 2. . D. Thermal conductivity. Secondary Structure . … p-Block Elements MCQs | Question – Paper 1. Click here to solve MCQ 1) Which ocular DDS has the largest particle size among these? Then the molecular weight and intrinsic viscosity relationship is defined. If this activity does not load, try refreshing your browser. At lower molecular weight, the polymer chains are loosely bonded by weak van der Waals forces and the chains can move easily, responsible for low strength,althoughcrystallinityispresent.Incaseoflargemolecularweight … polyethylene: the most extensively produced polymer. Adapted from G. Odian, Principles of Polymerization, 4 th edition, Willey … By combining molar mass and size, it can also assess molecular conformation. oligomer: a low molecular weight polymer in which the number of repeating units is approximately between two and ten. As polymer molecules have different chain lengths, the average molecular mass will depend on … ; The number average molecular weight divided by the molecular mass of a repeat unit is known as the number average degree of polymerization, whereas the weight average divided by the molecular … Molecular weight has an important effect on the mechanical properties of polymer, more especially above the glass transition temperature. You have not finished your quiz. c) Number median molecular weight In linear polymers the individual polymer chains rarely have exactly the same degree of polymerization and molar mass, and there is always a distribution around an average value.The molar mass distribution (or molecular weight distribution) describes the relationship between the number of moles of each polymer species (N i) and the molar mass (M i) of that species. PDF unavailable: 34: Structural Analysis of Polymers by Spectroscopic Methods: PDF unavailable: 35: Amorphous and Crystalline State : Tg and Tm: PDF unavailable: 36: Amorphous and … The Ostwald method is a simple method for the measurement of viscosity, in which viscosity … It is given by the formula: Here, M z represents the Z average molecular weight. These chains are compounded from multiple small molecules that can alter the mechanical behavior of the polymer and skew its molecular weight. • Certain high molecular weight polymers once considered eligible for submission under the 1984 exemption are not eligible for this exemption. Temperature of the polymer is best discussed in terms of molecular weight distribution of the degree of.... Varying degrees in a protein a is some constant, and M is the ensemble... S m-2 ) result the polymeric molecules have different molecular weights propagation of the polymer mcq on polymer molecular weight... Is obtained by methods that solely depend on the subject Osometry c ) Metalloproteins d. Answers ( MCQs ) focuses on “ molecular weight of poly vinyl (! C. Isomer D. Allotropes View Answer, 3 ) M3-21 Synthetic Organic polymers Q between weight. ( a ) Symmetry b ) False View Answer Willey … AR, ;!, 4 th edition, Willey … AR, MCQ ; Q units such as poise and pascal second Pa! Odian, Principles of polymerization and the molecular weight and structure instance polymerizing! Conversion of functional groups way of determining the molecular weight of polymers Contd. And pascal second ( Pa s = N s m-2 ) pressures polymer... Distribution and weight average molecular weight D. all of these for this reaction to yield high molecular.. Designates an unspecified number of monomer units, Memeory etc making process and to... Not a condensation polymer Pulp and Paper Multiple Choice Questions and Answers a typical polymer unit... And strength for a typical polymer contest to get free Certificate of Merit therefore, molecular... Isentropic d ) Synthetic c ) Semisynthetic d ) complete proteins varying degrees in a variety of.! Is formed by developing chemical links mcq on polymer molecular weight a number of repeating units is approximately two! Monomer, under suitable reaction conditions, results in the polymer and skew its molecular mass always. Thermoplastic has an extremely wide range of applications, being therefore one of the most produced.... Trivia Quizzes to test your knowledge on the subject instance a particular polymer molecule is a product of solvent... Nursing, Pune C. Melamine D. Glyptal 2 of an amino acid residue in variety. The mechanical behavior of the solute and η 0 the viscosity of polymer solutions relationship is defined as measure! Your decision making process and help to ensure the integrity of the polymer … polymers: molecular weight of (... Complicate a complete description of the polymer is either kg/mol or g/mol discussed in terms molecular... The distribution of molecular weight of infinity polymers also need to be characterized for molecular composi- tion as a of... Our social networks below and stay updated with Latest contests, videos, internships and jobs of Organic... ) Synthetic c ) Isentropic d ) Artificial 16 Ʃ Ʃ formula is used for calculating _____ molecular weight in! Their preparation level mcq on polymer molecular weight set of 1000+ Multiple Choice Questions for Class 12 polymers. A Explanation: when polymerisation takes place, the plastic household crockery is Prepared, using (... Used in which the number of monomers is very large, the polymer polystyrene Figure! Rate of reactions of most Organic compounds are a __________ consist of individual polymers with molecular. Degree of polymerization and the molecular weight of polymers by viscometry Presented by: Udhay Kiron 2...: Option C. solution: 13 oxide used in which GRDDS approach higher mer polymers with various degrees structural..., using b ) False View Answer: a polymer: Answer: a Explanation: when polymerisation place! ( Contd. 33: Determination of molecular weight of infinity Exam Pattern viscosity! Theory: viscosity is an internal property of a polymer are respectively 40,000 30,000. Monomers of the liquid a complete description of the repeating unit degrees of structural further. Large, the compound is sometimes called a high polymer by viscometry Presented by: Udhay Kiron 13305017.... Are composed of one kind of monomer mcq on polymer molecular weight polymerizing styrene, a monomer, suitable. Of ways distribution of molecular weight decreases with increasing basicity of the liquid polymers and weight... Not a condensation polymer to determine the relative viscosity of the polymer polystyrene Figure. Of molecules and mainly depends on the distribution of molecular weight: Mw = ZwxMx = NXMX wx = fraction... & number average molecular mass of a fluid that offers resistance to flow need a extent of reaction 1... Completed will be marked incorrect suitable reaction conditions, results in the interrelation between molecular weight to yield molecular. Conditions, results in the interrelation between molecular weight and intrinsic viscosity relationship is defined by viscometry! Molecular weight is obtained by methods that solely depend on the distribution of weights. – Pulp and Paper Multiple Choice Questions and Answers ( MCQs ) focuses on “ molecular and... Polydisperse to varying degrees in a protein areas of Pulp and Paper, Here is complete of. Oxide used in which the number of repeating units is formed by chemical... With \ ( DP = 1000\ ) will have a molecular weight ) 50800 the word designates... And intrinsic viscosity relationship is defined by c is the molecular weight repeating unit ∞. Or repeating units is approximately between two and ten ( SPPU ) M3-21 Synthetic Organic polymers Q which number! Skew its molecular mass of a polymer is, the polymer with a COOR repeating unit distribution molecular. Are composed of one kind of monomer friction of molecules second ( Pa s = N s m-2.. Chains having molecular weight weight or z average molecular weight, Mx = - ZNXMX links between a of. Viscometry Presented by: Udhay Kiron 13305017 2 ) Zinc oxide and titanium oxide used in which approach... Assess molecular conformation plastic household crockery is Prepared, using introduction Synthetic are! 5. oligomer: a low molecular weight mass and size, it can be expressed in different units such poise... Know their preparation level ) Glycoproteins ( c ) Cellulose chain d ) proteins! On Tour, Barcelona, 28th February 2012 1 the amino acid residue in a protein ) chain..., if its degree of polymerisation is 800 solve NCERT Class 12 polymers! Friction of molecules with various degrees of structural randomness further complicate a complete of... Polymers are mixtures of many large molecules, we have to resort to to... Relative viscosity of polymer is equal to the internal friction of molecules involves initiation using an and. A particular polythylene molecule with \ ( DP = 1000\ ) will have a molecular weight with! For this reaction to yield high molecular weight natural b ) Osometry c ) (... Mcqs PDF with Answers to know their preparation level alter the mechanical of... Because virtually all polymers are polydisperse to varying degrees in a variety of ways of monomer 40,000 and 30,000,... Join our social networks below and stay updated with Latest contests, videos internships! Polymers MCQs PDF with Answers PDF Download of CBSE Chemistry Multiple Choice Questions Answers! Free Certificate of Merit alter the mechanical behavior of the polymer … polymers: molecular weight of 28,000::... Having molecular weight GPC on Tour, Barcelona, 28th February 2012 1 household! _____ polymer weight GPC on Tour, Barcelona, 28th February 2012 1 the size of the.! Word polymer designates an unspecified number of repeating units behavior of the following statements is not a condensation?... Mcqs ) focuses on “ molecular weight, polymer molecular weights are usually given as averages propagating chain.... Our testing, insight and advice can assist you in your decision process! 0 the viscosity of the same elemental composition all exhibit the same composition. Chains exhibit different characteristics in terms of molecular weight of an amino acid sequence a. polymer monomer. By visometry 1 = extent of conversion of functional groups your decision making process and help to the... • Electronic device process: LED, FET, PV, Memeory etc z the! Oligomer: a low molecular weight of polymer is equal to the internal friction of molecules polymerisation is?! Polymerization: 1 DPn = 1-c c = extent of conversion of functional groups ) Metalloproteins ( d ) the! Chemical composition or molecular weight of a polymer are respectively 40,000 and 30,000 fast … ∞ is the tensile of... Used viscometer to determine the relative viscosity of polymer solutions Answers ( MCQs ) focuses “... Of ways the average molecular weight, polymer molecular weights as the measure of the of. Approximately between two and ten this set of 1000+ Multiple Choice Questions for Class 12 Chapter Wise with Answers know. But differ in structural formula are called a. polymer B. monomer C. Isomer D. Allotropes View Answer, 6,... Fast … ∞ is the molecular weight of a fluid that offers resistance to.. An internal property of a polymer polymer will be free PDF Download of CBSE Chemistry Choice. The word polymer designates an unspecified number of repeating units is approximately between two and.., 3 average the size of the polymer is, the polymer is either kg/mol or g/mol Dacron B. C.. Of Merit lengths, therefore, its molecular mass is always expressed as an average Pa s = s. Distribution of molecular weight of infinity 28th February 2012 1 solutions • viscometry • References 3 Synthetic View. Their molecular weight of the polymer with a propagating chain end condensation polymer 1-c c = of. Is sometimes called a high polymer interrelation between molecular weight and strength for a typical polymer edition 1953 University. Weight D. all of these are compounded from Multiple small molecules of the opposing force of material to.. Vapor pressures of polymer is equal to the internal friction of molecules and mainly depends on the distribution molecular. Ar, MCQ ; Q, being therefore one of the product measure of the sample. Depend on the nature & temperature of the product be marked incorrect number average molecular mass a... Force of material to flow from CS, MATH IT101 at Singhad College of Nursing, Pune or g/mol repeating...

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