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The number of repeating units in a polymer is known as __________

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The number of repeating units in a polymer is known as __________

(a) monomer

(b) degree of polymerization

(c) molecule

(d) chain

I got this question in final exam.

My question is based upon Polymers and Polymerization, Polymer Additives topic in chapter Non Metallic Materials of Engineering Material & Metallurgy

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Right option is (b) degree of polymerization

The best explanation: Monomers are small molecules which combine repeatedly to form a polymer. The number of these repetitive units in one molecule is referred to as the degree of polymerization. It is also known as D.P. value.

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