The structure below represents what polymer? (A) Amylopectin (B) cellulose (C) A

Question

The structure below represents what polymer? (A) Amylopectin (B) cellulose (C) Amylose (D) chitin (E) glucose What are the main amino acids in collagen fiber? (A) Glycine and proline (B) cysteine and alanine (C) glyeogen and collagen Proton NMR is used to attempt to quantify the molecular weight of a polymer formed from vinyl chloride protons using benzoyl peroxide as the initiator. If the integration of the phenyl protons relative to the methylene protons gave a ratio of 1:25, What is the molecular weight of the polymer formed? Assume termination by coupling gave a coupling. (A) 10 (B) 25 (C) 125 (D) 8, 054 (E) 16, 108 A tube of superglue will harden if it remains open for too long in a humid environment. What is the polymerization mechanism? (A) Cationic (B) anionic (C) free-radical (D) condensation The weight-average molecular weight and number-average molecular weight of certain polymer respectively 120,000 and 112,000.What is the polydispersity index of the polymer? (A) 10.7 (B) 0.93 (C) 10.7 (D) 120,000 (E) 112,000 A supramolecular polymer is (A) a polymer whose monomer repeat units are held together by covalent bonds (B) a polymer whose monomer repeat units are held together by noncovalent bonds (C) a polymer with no monomer repeat units A nanomaterial is (A) a material of which the size of a single unit is usually 1-100 nm (B) a material of which the size of a single unit is usually 1-100 mm (C) a material of which the size of a single unit is usually 10^-9 nm

Explanation / Answer

47. The compound represented in the figure is Amylopectin.

48. Glycine and Proline are major aminoacids in Collagen Fibre. Other than that arginine and hydroxyproline are also major amino acids in Collagen

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