45. Which of the following is a natural polymer ?
(1) Cellulose
(2) Rubber
(3) Plastic
(4) Silk
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silk ...................
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- NATURAL POLYMER
⇒ Polymers found in nature are known as natural polymers.
⇒They are formed by plants and animals.
- SYNTHETIC POLYMER
⇒ Polymers made by human beings are known as synthetic polymers.
⇒ Among the all option plastic is not a natural polymer because Cellulose, Rubber and Silk are found in nature whereas Plastic is not.
⇒ So the correct option will be 3 which is "Plastic"
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