Which one of the following is not a condensation polymer?

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Nylon

DNA

Polythene

Bakelite

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Answer is Wrong!

This question was previously asked in

UPSC CAPF – 2018

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Polythene (polyethylene) is formed by the addition polymerization of ethylene monomers (CH2=CH2). In addition polymerization, monomers add to one another without the elimination of any small molecules. Condensation polymerization, on the other hand, involves the reaction between monomers with the elimination of a small molecule such as water (H2O), alcohol, or ammonia.

Condensation polymers are formed with the elimination of a small molecule during polymerization. Addition polymers are formed by the simple addition of monomers without any elimination.

Nylon is a polyamide formed by the condensation reaction between a diamine and a dicarboxylic acid (or between amino acids). Bakelite is a phenol-formaldehyde resin formed by condensation. DNA is a biopolymer where nucleotides are linked by phosphodiester bonds, the formation of which involves the elimination of water (a condensation-like process), but in the context of synthetic polymers, Polythene is the clear example of an addition polymer among the options, making it the one that is *not* a condensation polymer.

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