Pick out the wrong statement. (A) Addition polymers are generally formed by chain growth polymerisation (B) Condensation polymers are generally formed by step growth polymerisation (C) Teflon is formed by step growth polymerisation (D) Bakelite is formed by step growth polymerisation

Pick out the wrong statement.
(A) Addition polymers are generally formed by chain growth polymerisation
(B) Condensation polymers are generally formed by step growth
polymerisation
(C) Teflon is formed by step growth polymerisation
(D) Bakelite is formed by step growth polymerisation
by

1 Answer

Answer :

C) Teflon is formed by step growth polymerisation
by

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Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is (A) Nylon-66 (B) Teflon (C) Polyester (D) Bakelite

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Which of the following are addition polymers? I. Polypropylene II. Teflon III. Nylon (a) Only I (b) Only II (c) Only III (d) both I and II

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Which of the following is formed by condensation polymerisation.

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Which of the following is not a polymer of two monomers? (A) Teflon (B) Bakelite (C) SBR (D) None of these

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Poly-methyl-methacrylate (PMMA) is known as (A) Bakelite (B) Teflon (C) Perspex (D) Nylon-6

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Last Answer : (A) Polymers made of only one monomer is called homopolyme

Pick out the wrong statement regarding the solubility characteristics of high polymers. (A) Greater the degree of cross-linking in the polymer, lesser is its solubility (B) Polymers having more aliphatic character are more soluble in aliphatic solvents, while those polymers having more aromatic character are more soluble in aromatic solvents (C) Swelling tendency or solubility of polymers in a particular solvent decreases with increase in molecular weight of the solvent (D) High molecular weight polymers on dissolving gives solution of very low viscosity

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