Which of the following is not a polymer?

DNA

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Glucose

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Starch

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Cellulose

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Solution

The correct option is B
Glucose

Explanation for correct option:
B. Glucose
Polymer:
Polymer is a material that is composed of large molecules/macromolecules repeating units.
Polymers can be natural, semi-synthetic as well as synthetic in nature.
Examples of polymers are Starch, cellulose as well as Nylon- $6, 6$ .
Glucose is a monomer that participates in polymer formation such as starch as well as starch.
Explanation for incorrect options:
DNA, starch, and cellulose are natural polymers while glucose is a monomer. Thus options A, C and D are incorrect.
Hence, the correct option is B i.e. Glucose is not a polymer.

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